Form N-Q

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM N-Q


QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number         811-6622         

        Nuveen Select Tax-Free Income Portfolio 2         
(Exact name of registrant as specified in charter)

Nuveen Investments
        333 West Wacker Drive, Chicago, Illinois 60606         

(Address of principal executive offices) (Zip code)


Kevin J. McCarthy Vice President and Secretary
        333 West Wacker Drive, Chicago, Illinois 60606         

(Name and address of agent for service)

Registrant's telephone number, including area code:         312-917-7700        

Date of fiscal year end:            3/31          

Date of reporting period:         6/30/09         

Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1. Schedule of Investments

    Portfolio of Investments (Unaudited)             
    Nuveen Select Tax-Free Income Portfolio 2 (NXQ)             
    June 30, 2009             
Principal        Optional Call         
Amount (000)    Description (1)    Provisions (2)    Ratings (3)    Value 

    Municipal Bonds – 99.2%             
    Arizona – 0.7%             
$     2,000    Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Series 2007,    No Opt. Call    A   $   1,491,720 
       5.000%,12/01/37             

    Arkansas – 1.3%             
1,000    Fort Smith, Arkansas, Water and Sewer Revenue Refunding and Construction Bonds, Series 2002A,    10/11 at 100.00    AAA    1,088,990 
     5.000%, 10/01/19 – FSA Insured             
2,000    University of Arkansas, Fayetteville, Various Facilities Revenue Bonds, Series 2002, 5.000%,    12/12 at 100.00    Aa3    1,978,140 
     12/01/32 – FGIC Insured             

3,000    Total Arkansas            3,067,130 

    California – 6.6%             
1,000    Alameda Corridor Transportation Authority, California, Subordinate Lien Revenue Bonds, Series    10/17 at 100.00    A–    733,280 
     2004A, 0.000%, 10/01/25 – AMBAC Insured             
3,325    California Department of Water Resources, Power Supply Revenue Bonds, Series 2002A,    5/12 at 101.00    Aa3    3,628,473 
     6.000%, 5/01/14             
500    California State Public Works Board, Lease Revenue Refunding Bonds, Community Colleges    12/09 at 100.50    A–    502,900 
     Projects, Series 1998A, 5.250%, 12/01/16             
2,000    California State Public Works Board, Lease Revenue Refunding Bonds, Various University of    No Opt. Call    Aa2    2,149,040 
     California Projects, Series 1993A, 5.500%, 6/01/14             
60    California, General Obligation Bonds, Series 1997, 5.000%, 10/01/18 – AMBAC Insured    10/09 at 100.00    A    60,168 
2,500    California, General Obligation Bonds, Series 2005, 5.000%, 3/01/31    3/16 at 100.00    A    2,193,350 
1,000    Golden State Tobacco Securitization Corporation, California, Enhanced Tobacco Settlement    6/17 at 100.00    BBB    541,260 
     Asset-Backed Bonds, Series 2007A-1, 5.125%, 6/01/47             
3,200    Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed    6/13 at 100.00    AAA    3,727,456 
     Bonds, Series 2003A-1, 6.750%, 6/01/39 (Pre-refunded 6/01/13)             
1,195    Palmdale Elementary School District, Los Angeles County, California, General Obligation Bonds,    No Opt. Call    AAA    366,459 
     Series 2003, 0.000%, 8/01/28 – FSA Insured             
1,750    Tobacco Securitization Authority of Northern California, Tobacco Settlement Asset-Backed    6/15 at 100.00    BBB    1,017,345 
     Bonds, Series 2005A-1, 5.500%, 6/01/45             

16,530    Total California            14,919,731 

    Colorado – 10.6%             
1,700    Colorado Health Facilities Authority, Revenue Bonds, Catholic Health Initiatives, Series    3/12 at 100.00    AA (4)    1,853,170 
     2002A, 5.500%, 3/01/22 (ETM)             
1,300    Colorado Health Facilities Authority, Revenue Bonds, Catholic Health Initiatives, Series    3/12 at 100.00    AA (4)    1,437,163 
     2002A, 5.500%, 3/01/22 (Pre-refunded 3/01/12)             
2,440    Denver City and County, Colorado, Airport System Revenue Bonds, Series 1991D, 7.750%, 11/15/13    No Opt. Call    A+    2,626,172 
     (Alternative Minimum Tax)             
5,000    Denver City and County, Colorado, Airport System Revenue Refunding Bonds, Series 2001A,    11/11 at 100.00    A+    5,078,549 
     5.625%, 11/15/17 – FGIC Insured (Alternative Minimum Tax)             
1,555    Denver City and County, Colorado, Airport System Revenue Refunding Bonds, Series 2001, 5.500%,    11/11 at 100.00    A+    1,611,058 
     11/15/16 – FGIC Insured             
3,000    Denver Convention Center Hotel Authority, Colorado, Senior Revenue Bonds, Convention Center    12/13 at 100.00    N/R (4)    3,318,660 
     Hotel, Series 2003A, 5.000%, 12/01/23 (Pre-refunded 12/01/13) – SYNCORA GTY Insured             
2,000    Denver Convention Center Hotel Authority, Colorado, Senior Revenue Bonds, Convention Center    11/16 at 100.00    BBB–    1,284,220 
     Hotel, Series 2006, 4.750%, 12/01/35 – SYNCORA GTY Insured             
    E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2000B:             
5,100     0.000%, 9/01/24 – MBIA Insured    No Opt. Call    A    1,660,203 
7,500     0.000%, 9/01/29 – MBIA Insured    No Opt. Call    A    1,571,700 
4,000     0.000%, 9/01/33 – MBIA Insured    No Opt. Call    A    597,960 
5,000    E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2000B, 0.000%, 9/01/28    9/10 at 31.42    Aaa    1,550,050 
     (Pre-refunded 9/01/10) – MBIA Insured             
250    Northwest Parkway Public Highway Authority, Colorado, Revenue Bonds, Senior Series 2001A,    6/11 at 102.00    AAA    272,983 
     5.250%, 6/15/41 (Pre-refunded 6/15/11) – FSA Insured             
1,100    University of Colorado Hospital Authority, Revenue Bonds, Series 2001A, 5.600%, 11/15/31    11/11 at 100.00    A3 (4)    1,208,207 
     (Pre-refunded 11/15/11)             

39,945    Total Colorado            24,070,095 

    Florida – 2.4%             
1,000    Hillsborough County Industrial Development Authority, Florida, Hospital Revenue Bonds, Tampa    10/16 at 100.00    A3    812,650 
     General Hospital, Series 2006, 5.250%, 10/01/41             
1,500    Jacksonville, Florida, Guaranteed Entitlement Revenue Refunding and Improvement Bonds, Series    10/12 at 100.00    A+    1,511,520 
     2002, 5.000%, 10/01/21 – FGIC Insured             
2,500    JEA, Florida, Electric System Revenue Bonds, Series 2006-3A, 5.000%, 10/01/41 – FSA Insured    4/15 at 100.00    AAA    2,423,525 
625    Miami-Dade County Expressway Authority, Florida, Toll System Revenue Refunding Bonds, Series    7/11 at 101.00    A3    608,606 
     2001, 5.125%, 7/01/29 – FGIC Insured             

5,625    Total Florida            5,356,301 

    Hawaii – 0.5%             
1,100    Hawaii, Certificates of Participation, Kapolei State Office Building, Series 1998A, 5.000%,    11/09 at 100.50    N/R    1,113,530 
     5/01/17 – AMBAC Insured             

    Illinois – 14.0%             
630    Chicago Metropolitan Housing Development Corporation, Illinois, FHA-Insured Section 8 Assisted    7/09 at 100.00    AA    631,336 
     Housing Development Revenue Refunding Bonds, Series 1992, 6.800%, 7/01/17             
590    Chicago, Illinois, Motor Fuel Tax Revenue Bonds, Series 2003A, 5.000%, 1/01/33 – AMBAC Insured    7/13 at 100.00    AA+    578,017 
1,665    Chicago, Illinois, Third Lien General Airport Revenue Bonds, O’Hare International Airport,    1/16 at 100.00    A1    1,585,430 
     Series 2005A, 5.000%, 1/01/33 – FGIC Insured             
600    Illinois Educational Facilities Authority, Student Housing Revenue Bonds, Educational    5/12 at 101.00    Aaa    683,226 
     Advancement Foundation Fund, University Center Project, Series 2002, 6.000%, 5/01/22             
     (Pre-refunded 5/01/12)             
1,050    Illinois Finance Authority, Revenue Bonds, Loyola University of Chicago, Tender Option Bond    7/17 at 100.00    Aa1    967,733 
     Trust 1137, 9.186%, 7/01/46 (IF)             
2,185    Illinois Finance Authority, Revenue Bonds, YMCA of Southwest Illinois, Series 2005, 5.000%,    9/15 at 100.00    Aa3    1,780,666 
     9/01/31 – RAAI Insured             
2,255    Illinois Health Facilities Authority, Revenue Bonds, Lake Forest Hospital, Series 2002A,    7/12 at 100.00    A–    2,278,880 
     6.250%, 7/01/22             
1,055    Illinois Health Facilities Authority, Revenue Bonds, Loyola University Health System, Series    7/11 at 100.00    Baa3 (4)    1,144,686 
     2001A, 6.125%, 7/01/31 (Pre-refunded 7/01/11)             
1,000    Illinois Housing Development Authority, Housing Finance Bonds, Series 2005E, 4.750%, 7/01/30 –    1/15 at 100.00    A+    923,660 
     FGIC Insured             
5,700    Illinois, Sales Tax Revenue Bonds, First Series 2002, 5.000%, 6/15/22    6/13 at 100.00    AAA    5,904,344 
45    Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion    12/09 at 100.00    A2    45,095 
     Project, Series 1992A, 6.500%, 6/15/22             
7,000    Metropolitan Pier and Exposition Authority, Illinois, Revenue Refunding Bonds, McCormick Place    6/12 at 101.00    AAA    7,201,597 
     Expansion Project, Series 2002B, 5.000%, 6/15/21 – MBIA Insured             
5,045    Sauk Village, Illinois, General Obligation Alternate Revenue Source Bonds, Tax Increment,    12/12 at 100.00    A    4,487,225 
     Series 2002A, 5.000%, 6/01/22 – RAAI Insured             
    Sauk Village, Illinois, General Obligation Alternate Revenue Source Bonds, Tax Increment,             
    Series 2002B:             
1,060     0.000%, 12/01/17 – RAAI Insured    No Opt. Call    A    658,716 
1,135     0.000%, 12/01/18 – RAAI Insured    No Opt. Call    A    654,486 
1,100    Schaumburg, Illinois, General Obligation Bonds, Series 2004B, 5.250%, 12/01/34 – FGIC Insured    12/14 at 100.00    AA+    1,112,342 
1,000    Yorkville, Illinois, General Obligation Debt Certificates, Series 2003, 5.000%, 12/15/21    12/11 at 100.00    BBB– (4)    1,096,170 
     (Pre-refunded 12/15/11) – RAAI Insured             

33,115    Total Illinois            31,733,609 

    Indiana – 3.9%             
1,000    Franklin Community Multi-School Building Corporation, Marion County, Indiana, First Mortgage    7/14 at 100.00    A (4)    1,140,350 
     Revenue Bonds, Series 2004, 5.000%, 7/15/22 (Pre-refunded 7/15/14) – FGIC Insured             
750    Indiana Health and Educational Facilities Financing Authority, Revenue Bonds, Ascension    No Opt. Call    Aa1    717,638 
     Health, Series 2006B-5, 5.000%, 11/15/36             
1,000    Indiana Health Facility Financing Authority, Revenue Bonds, Community Foundation of Northwest    3/17 at 100.00    BBB    853,040 
     Indiana, Series 2007, 5.500%, 3/01/37             
835    Indiana Housing Finance Authority, Single Family Mortgage Revenue Bonds, Series 2002C-2,    7/11 at 100.00    Aaa    812,179 
     5.250%, 7/01/23 (Alternative Minimum Tax)             
4,380    Indiana Municipal Power Agency, Power Supply System Revenue Bonds, Series 2002A, 5.125%,    1/12 at 100.00    A+    4,415,259 
     1/01/21 – AMBAC Insured             
290    St. Joseph County Hospital Authority, Indiana, Revenue Bonds, Memorial Health System, Series    8/09 at 100.50    AA–    264,840 
     1998A, 4.625%, 8/15/28 – MBIA Insured             
750    West Clark 2000 School Building Corporation, Clark County, Indiana, First Mortgage Bonds,    1/15 at 100.00    AA+    780,053 
     Series 2005, 5.000%, 7/15/22 – MBIA Insured             

9,005    Total Indiana            8,983,359 

    Iowa – 3.4%             
1,875    Iowa Finance Authority, Single Family Mortgage Revenue Bonds, Series 2007B, 4.800%, 1/01/37    7/16 at 100.00    AAA    1,655,269 
     (Alternative Minimum Tax)             
1,000    Iowa Tobacco Settlement Authority, Asset Backed Settlement Revenue Bonds, Series 2005C,    6/15 at 100.00    BBB    595,350 
     5.375%, 6/01/38             
1,000    Iowa Tobacco Settlement Authority, Tobacco Asset-Backed Revenue Bonds, Series 2005B,    6/17 at 100.00    BBB    733,950 
     5.600%, 6/01/34             
    Iowa Tobacco Settlement Authority, Tobacco Settlement Asset-Backed Revenue Bonds, Series 2001B:             
960     5.300%, 6/01/25 (Pre-refunded 6/01/11)    6/11 at 101.00    AAA    1,028,400 
3,500     5.600%, 6/01/35 (Pre-refunded 6/01/11)    6/11 at 101.00    AAA    3,795,750 

8,335    Total Iowa            7,808,719 

    Kansas – 0.6%             
795    Lawrence, Kansas, Hospital Revenue Bonds, Lawrence Memorial Hospital, Series 2006,    7/16 at 100.00    A3    639,267 
     4.875%, 7/01/36             
1,000    Salina, Kansas, Hospital Revenue Bonds, Salina Regional Medical Center, Series 2006,    4/13 at 100.00    A1    840,070 
     4.500%, 10/01/26             

1,795    Total Kansas            1,479,337 

    Louisiana – 2.4%             
2,180    Louisiana Public Facilities Authority, Revenue Bonds, Baton Rouge General Hospital, Series    7/14 at 100.00    A    2,213,485 
     2004, 5.250%, 7/01/24 – MBIA Insured             
3,000    Louisiana Public Facilities Authority, Revenue Bonds, Tulane University, Series 2002A, 5.125%,    7/12 at 100.00    A2 (4)    3,328,890 
     7/01/27 (Pre-refunded 7/01/12) – AMBAC Insured             

5,180    Total Louisiana            5,542,375 

    Massachusetts – 3.3%             
3,000    Massachusetts Health and Educational Facilities Authority, Revenue Bonds, Berkshire Health    10/11 at 101.00    BBB+    2,628,840 
     System, Series 2001E, 6.250%, 10/01/31             
500    Massachusetts Health and Educational Facilities Authority, Revenue Bonds, CareGroup Inc.,    7/18 at 100.00    A3    449,520 
     Series 2008E-1, 5.000%, 7/01/28             
2,565    Massachusetts Turnpike Authority, Metropolitan Highway System Revenue Bonds, Senior Series    7/09 at 100.00    AA–    2,114,535 
     1997A, 5.000%, 1/01/37 – MBIA Insured             
1,270    Massachusetts Water Resources Authority, General Revenue Bonds, Series 1993C, 5.250%,    No Opt. Call    Aa2 (4)    1,420,597 
     12/01/15 – MBIA Insured (ETM)             
820    Massachusetts Water Resources Authority, General Revenue Bonds, Series 1993C, 5.250%,    No Opt. Call    Aa2    926,985 
     12/01/15 – MBIA Insured             

8,155    Total Massachusetts            7,540,477 

    Michigan – 1.6%             
545    Detroit, Michigan, General Obligation Bonds, Series 2003A, 5.250%, 4/01/19 – SYNCORA    4/13 at 100.00    BB    449,118 
     GTY Insured             
2,900    Michigan State Hospital Finance Authority, Hospital Revenue Refunding Bonds, Trinity Health    12/12 at 100.00    AA    2,872,566 
     Credit Group, Series 2002C, 5.375%, 12/01/30             
250    Royal Oak Hospital Finance Authority, Michigan, Hospital Revenue Bonds, William Beaumont    9/18 at 100.00    A1    280,565 
     Hospital, Refunding Series 2009V, 8.250%, 9/01/39             

3,695    Total Michigan            3,602,249 

    Minnesota – 0.6%             
1,500    Minnesota Housing Finance Agency, Residential Housing Finance Bonds, Series 2007-I, 4.850%,    7/16 at 100.00    AA+    1,309,815 
     7/01/38 (Alternative Minimum Tax)             

    Mississippi – 0.2%             
500    Mississippi Development Bank, Revenue Bonds, Mississippi Municipal Energy Agency, Mississippi    3/16 at 100.00    Baa2    456,075 
     Power, Series 2006A, 5.000%, 3/01/21 – SYNCORA GTY Insured             

    Nevada – 2.8%             
1,500    Clark County, Nevada, General Obligation Bank Bonds, Southern Nevada Water Authority Loan,    6/11 at 100.00    AA+ (4)    1,623,360 
     Series 2001, 5.300%, 6/01/19 (Pre-refunded 6/01/11) – FGIC Insured             
    Director of Nevada State Department of Business and Industry, Revenue Bonds, Las Vegas             
    Monorail Project, First Tier, Series 2000:             
4,595     0.000%, 1/01/22 – AMBAC Insured    No Opt. Call    BBB    625,058 
13,250     5.375%, 1/01/40 – AMBAC Insured    1/10 at 100.00    BBB    4,100,345 

19,345    Total Nevada            6,348,763 

    New Jersey – 1.7%             
2,500    New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Somerset Medical Center,    7/13 at 100.00    Ba2    1,643,050 
     Series 2003, 5.500%, 7/01/23             
    Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds,             
    Series 2003:             
1,000     6.375%, 6/01/32 (Pre-refunded 6/01/13)    6/13 at 100.00    AAA    1,138,300 
1,010     6.250%, 6/01/43 (Pre-refunded 6/01/13)    6/13 at 100.00    AAA    1,182,892 

4,510    Total New Jersey            3,964,242 

    New Mexico – 2.9%             
1,000    New Mexico Mortgage Finance Authority, Multifamily Housing Revenue Bonds, St Anthony, Series    9/17 at 100.00    AAA    924,840 
     2007A, 5.250%, 9/01/42 (Alternative Minimum Tax)             
    University of New Mexico, FHA-Insured Mortgage Hospital Revenue Bonds, Series 2004:             
555     4.625%, 1/01/25 – FSA Insured    7/14 at 100.00    AAA    519,469 
660     4.625%, 7/01/25 – FSA Insured    7/14 at 100.00    AAA    616,862 
2,000     4.750%, 7/01/27 – FSA Insured    7/14 at 100.00    AAA    1,856,280 
3,000     4.750%, 1/01/28 – FSA Insured    7/14 at 100.00    AAA    2,759,790 

7,215    Total New Mexico            6,677,241 

    New York – 4.5%             
2,045    Dormitory Authority of the State of New York, Revenue Bonds, Mount Sinai NYU Health Obligated    7/10 at 101.00    A3    2,104,837 
     Group, Series 2000A, 6.500%, 7/01/17             
655    Dormitory Authority of the State of New York, Revenue Bonds, Mount Sinai NYU Health Obligated    7/10 at 101.00    A3 (4)    696,141 
     Group, Series 2000A, 6.500%, 7/01/17 (Pre-refunded 7/01/10)             
2,000    New York City Municipal Water Finance Authority, New York, Water and Sewerage System Revenue    12/14 at 100.00    AAA    1,982,440 
     Bonds, Series 2004B, 5.000%, 6/15/36 – FSA Insured (UB)             
1,700    New York Dorm Authority, FHA Insured Mortgage Hospital Revenue Bonds, Kaleida Health, Series    8/16 at 100.00    BBB    1,543,447 
     2006, 4.700%, 2/15/35             
3,000    New York State Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed and    6/11 at 100.00    AA–    3,077,040 
     State Contingency Contract-Backed Bonds, Series 2003B-1C, 5.500%, 6/01/16             
870    Triborough Bridge and Tunnel Authority, New York, Convention Center Bonds, Series 1990E,    No Opt. Call    AA–    898,214 
     7.250%, 1/01/10             

10,270    Total New York            10,302,119 

    North Carolina – 0.5%             
1,155    Charlotte-Mecklenburg Hospital Authority, North Carolina, Healthcare System Revenue Bonds,    1/11 at 101.00    AA–    1,134,060 
     Carolinas Healthcare System, Series 2001A, 5.000%, 1/15/31             

    Ohio – 1.7%             
    Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue             
    Bonds, Senior Lien, Series 2007A-2:             
50     5.125%, 6/01/24    6/17 at 100.00    BBB    40,407 
1,865     5.375%, 6/01/24    6/17 at 100.00    BBB    1,549,237 
680     5.875%, 6/01/30    6/17 at 100.00    BBB    483,235 
775     5.750%, 6/01/34    6/17 at 100.00    BBB    498,775 
2,180     5.875%, 6/01/47    6/17 at 100.00    BBB    1,232,136 

5,550    Total Ohio            3,803,790 

    Oklahoma – 1.4%             
1,000    Norman Regional Hospital Authority, Oklahoma, Hospital Revenue Bonds, Series 2005,    9/16 at 100.00    BBB–    678,650 
     5.375%, 9/01/36             
3,000    Oklahoma Development Finance Authority, Revenue Bonds, Saint John Health System, Series 2007,    2/17 at 100.00    A    2,534,970 
     5.000%, 2/15/42             

4,000    Total Oklahoma            3,213,620 

    Pennsylvania – 2.5%             
1,020    Carlisle Area School District, Cumberland County, Pennsylvania, General Obligation Bonds,    9/09 at 100.00    A1 (4)    1,028,078 
     Series 2004A, 5.000%, 9/01/20 (Pre-refunded 9/01/09) – FGIC Insured             
1,000    Philadelphia Authority for Industrial Development, Pennsylvania, Airport Revenue Bonds,    7/11 at 101.00    A+    1,000,270 
     Philadelphia Airport System Project, Series 2001A, 5.500%, 7/01/17 – FGIC Insured (Alternative             
     Minimum Tax)             
3,250    Philadelphia School District, Pennsylvania, General Obligation Bonds, Series 2002A, 5.500%,    2/12 at 100.00    AAA    3,590,308 
     2/01/31 (Pre-refunded 2/01/12) – FSA Insured             

5,270    Total Pennsylvania            5,618,656 

    Puerto Rico – 1.4%             
1,035    Puerto Rico Housing Finance Authority, Capital Fund Program Revenue Bonds, Series 2003,    12/13 at 100.00    AA+    1,052,460 
     5.000%, 12/01/20             
1,965    Puerto Rico Housing Finance Authority, Capital Fund Program Revenue Bonds, Series 2003,    12/12 at 100.00    AAA    2,195,553 
     5.000%, 12/01/20 (Pre-refunded 12/01/12)             

3,000    Total Puerto Rico            3,248,013 

    Rhode Island – 2.0%             
5,835    Rhode Island Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed Bonds,    6/12 at 100.00    BBB    4,529,360 
     Series 2002A, 6.250%, 6/01/42             

    South Carolina – 5.8%             
700    Dorchester County School District 2, South Carolina, Installment Purchase Revenue Bonds,    12/14 at 100.00    AA–    721,140 
     GROWTH, Series 2004, 5.250%, 12/01/20             
620    Florence, South Carolina, Water and Sewerage Revenue Bonds, Series 2000, 5.750%, 3/01/20 –    3/10 at 101.00    A+    639,090 
     AMBAC Insured             
4,000    Greenville County School District, South Carolina, Installment Purchase Revenue Bonds, Series    12/12 at 101.00    AA (4)    4,641,760 
     2002, 5.875%, 12/01/19 (Pre-refunded 12/01/12)             
2,500    Lexington County Health Service District, South Carolina, Hospital Revenue Refunding and    11/13 at 100.00    A+ (4)    2,921,000 
     Improvement Bonds, Series 2003, 6.000%, 11/01/18 (Pre-refunded 11/01/13)             
    Medical University Hospital Authority, South Carolina, FHA-Insured Mortgage Revenue Bonds,             
    Series 2004A:             
500     5.250%, 8/15/20 – MBIA Insured    8/14 at 100.00    A    509,925 
2,435     5.250%, 2/15/21 – MBIA Insured    8/14 at 100.00    A    2,479,025 
845    Piedmont Municipal Power Agency, South Carolina, Electric Revenue Refunding Bonds, Series    1/10 at 100.00    A    778,634 
     1998A, 4.750%, 1/01/25 – MBIA Insured             
475    The College of Charleston, Charleston South Carolina, Academic and Administrative Revenue    4/14 at 100.00    A2    456,485 
     Bonds, Series 2004B, 5.125%, 4/01/30 – SYNCORA GTY Insured             

12,075    Total South Carolina            13,147,059 

    South Dakota – 0.4%             
1,000    South Dakota Health and Educational Facilities Authority, Revenue Bonds, Sioux Valley    11/14 at 100.00    AA–    922,390 
     Hospitals, Series 2004A, 5.250%, 11/01/34             

    Texas – 12.2%             
4,000    Brazos River Harbor Navigation District, Brazoria County, Texas, Environmental Facilities    5/12 at 101.00    BBB–    3,720,840 
     Revenue Bonds, Dow Chemical Company Project, Series 2002A-6, 6.250%, 5/15/33 (Mandatory             
     put 5/15/17) (Alternative Minimum Tax)             
1,500    Central Texas Regional Mobility Authority, Travis and Williamson Counties, Toll Road Revenue    1/15 at 100.00    A    1,096,590 
     Bonds, Series 2005, 5.000%, 1/01/45 – FGIC Insured             
1,000    Dallas Area Rapid Transit, Texas, Senior Lien Sales Tax Revenue Bonds, Series 2001, 5.000%,    12/11 at 100.00    AAA    1,095,320 
     12/01/31 (Pre-refunded 12/01/11) – AMBAC Insured             
2,500    Harris County Health Facilities Development Corporation, Texas, Hospital Revenue Bonds, Texas    No Opt. Call    A (4)    2,854,125 
     Children’s Hospital, Series 1995, 5.500%, 10/01/16 – MBIA Insured (ETM)             
3,000    Harris County Health Facilities Development Corporation, Texas, Thermal Utility Revenue Bonds,    11/13 at 100.00    AA–    2,896,680 
     TECO Project, Series 2003, 5.000%, 11/15/30 – MBIA Insured             
6,610    Harris County-Houston Sports Authority, Texas, Junior Lien Revenue Bonds, Series 2001H,    11/31 at 53.78    A    502,426 
     0.000%, 11/15/41 – MBIA Insured             
2,000    Houston, Texas, Subordinate Lien Airport System Revenue Bonds, Series 2002A, 5.625%, 7/01/20 –    7/12 at 100.00    AAA    2,014,240 
     FSA Insured (Alternative Minimum Tax)             
3,125    Katy Independent School District, Harris, Fort Bend and Waller Counties, Texas, General    2/12 at 100.00    AAA    3,427,500 
     Obligation Bonds, Series 2002A, 5.000%, 2/15/32 (Pre-refunded 2/15/12)             
1,400    Kerrville Health Facilities Development Corporation, Texas, Revenue Bonds, Sid Peterson    No Opt. Call    BBB–    1,141,602 
     Memorial Hospital Project, Series 2005, 5.375%, 8/15/35             
90    Lewisville Independent School District, Denton County, Texas, General Obligation Bonds, Series    8/11 at 100.00    AAA    92,441 
     2004, 5.000%, 8/15/23             
910    Lewisville Independent School District, Denton County, Texas, General Obligation Bonds, Series    8/11 at 100.00    AAA    987,041 
     2004, 5.000%, 8/15/23 (Pre-refunded 8/15/11)             
335    Live Oak, Texas, General Obligation Bonds, Series 2004, 5.250%, 8/01/20 – MBIA Insured    8/14 at 100.00    Baa1    339,891 
4,850    Sam Rayburn Municipal Power Agency, Texas, Power Supply System Revenue Refunding Bonds, Series    10/12 at 100.00    BBB    4,805,234 
     2002A, 5.500%, 10/01/17 – RAAI Insured             
1,000    San Antonio, Texas, Water System Revenue Bonds, Series 2005, 4.750%, 5/15/37 – MBIA Insured    5/15 at 100.00    AA    942,510 
500    Texas Water Development Board, Senior Lien State Revolving Fund Revenue Bonds, Series 2000A,    7/10 at 100.00    AAA    520,905 
     5.625%, 7/15/13             
1,560    Texas, General Obligation Bonds, Water Financial Assistance Program, Series 2003A, 5.125%,    8/13 at 100.00    Aa1    1,363,580 
     8/01/42 (Alternative Minimum Tax)             

34,380    Total Texas            27,800,925 

    Utah – 0.7%             
1,435    Salt Lake City and Sandy Metropolitan Water District, Utah, Water Revenue Bonds, Series 2004,    7/14 at 100.00    Aa3    1,485,656 
     5.000%, 7/01/21 – AMBAC Insured             

    Vermont – 1.3%             
2,895    Vermont Housing Finance Agency, Multifamily Housing Bonds, Series 1999C, 5.800%, 8/15/16 –    8/09 at 100.00    AAA    2,899,256 
     FSA Insured             

    Virginia – 0.7%             
1,340    Metropolitan District of Columbia Airprots Authority, Virginia, Airport System Revenue Bonds,    10/10 at 100.00    AA–    1,238,455 
     Series 1998B, 5.000%, 10/01/28 – MBIA Insured (Alternative Minimum Tax)             
250    Norfolk, Virginia, Water Revenue Bonds, Series 1995, 5.750%, 11/01/13 – MBIA Insured    11/09 at 100.00    A1    250,895 

1,590    Total Virginia            1,489,350 

    Washington – 3.0%             
6,715    Washington State Healthcare Facilities Authority, Revenue Bonds, Sisters of Providence Health    10/11 at 100.00    AA    6,828,415 
     System, Series 2001A, 5.125%, 10/01/17 – MBIA Insured             

    Wisconsin – 1.6%             
1,000    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Wheaton Franciscan    8/13 at 100.00    BBB+    938,440 
     Services Inc., Series 2003A, 5.500%, 8/15/18             
2,575    Wisconsin Housing and Economic Development Authority, Home Ownership Revenue Bonds, Series    3/12 at 100.00    AA    2,639,607 
     2002G, 4.850%, 9/01/17             

3,575    Total Wisconsin            3,578,047 

$     269,295    Total Municipal Bonds (cost $243,363,900)            225,465,484 

Shares    Description (1)            Value 

    Common Stocks – 0.0%             
    Airlines – 0.0%             
757    UAL Corporation, (5)          $  2,415 


    Total Common Stocks (cost $0)            2,415 

    Total Long-Term Investments (cost $243,363,900) – 99.2%            225,467,899 

 
Principal               
Amount (000)    Description (1)      Ratings (3)    Value 

    Short-Term Investments – 0.2%           
$            527    State Street Bank Euro Dollar Time Deposit, 0.010%, 7/01/09        N/A  $  526,654 


    Total Short-Term Investments (cost $526,654)          526,654 

    Total Investments (cost $243,890,554) – 99.4%          225,994,553 

    Floating Rate Obligations – (0.4%)          (1,000,000)

    Other Assets Less Liabilities – 1.0%          2,324,890 

    Net Assets – 100%        $  227,319,443 



Fair Value Measurements

In determining the value of the Fund’s investments various inputs are used. These inputs are summarized in the three broad levels listed below:

Level 1 – Quoted prices in active markets for identical securities.

Level 2 – Other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.).

Level 3 – Significant unobservable inputs (including management’s assumptions in determining the fair value of investments).

The inputs or methodology used for valuing securities are not an indication of the risk associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of June 30, 2009:

    Level 1    Level 2    Level 3    Total 

Investments:                 
   Municipal Bonds    $        —    $225,465,484    $ —    $225,465,484 
   Common Stocks    2,415            2,415 
   Short-Term Investments    526,654            526,654 

Total    $529,069    $225,465,484    $ —    $225,994,553 


Income Tax Information

The following information is presented on an income tax basis. Differences between amounts for financial statement and federal income tax purposes are primarily due to timing differences in recognizing taxable market discount, timing differences in recognizing certain gains and losses on investment transactions and the treatment of investments in inverse floating rate transactions subject to Statement of Financial Accounting Standards No. 140 (SFAS No. 140), if any. To the extent that differences arise that are permanent in nature, such amounts are reclassified within the capital accounts on the Statement of Assets and Liabilities presented in the annual report, based on their federal tax basis treatment; temporary differences do not require reclassification. Temporary and permanent differences do not impact the net asset values of the Fund.

At June 30, 2009, the cost of investments was $242,713,316.

Gross unrealized appreciation and gross unrealized depreciation of investments at June 30, 2009, were as follows:


Gross unrealized:     
  Appreciation    $   7,607,586 
  Depreciation    (25,326,349)

Net unrealized appreciation (depreciation) of investments    $(17,718,763)


(1)    All percentages shown in the Portfolio of Investments are based on net assets. 
(2)    Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. 
    There may be other call provisions at varying prices at later dates. Certain mortgage-backed securities 
    may be subject to periodic principal paydowns. 
(3)    Ratings: Using the higher of Standard & Poor’s Group (“Standard & Poor’s”) or Moody’s Investor Service, 
    Inc. (“Moody’s”) rating. Ratings below BBB by Standard & Poor’s or Baa by Moody’s are considered to be 
    below investment grade. 
(4)    Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency 
    securities which ensure the timely payment of principal and interest. Such investments are normally 
    considered to be equivalent to AAA rated securities. 
(5)    On December 9, 2002, UAL Corporation (“UAL”), the holding company of United Air Lines, Inc. 
    (“United”) filed for federal bankruptcy protection. The Adviser determined that it was likely that United 
    would not remain current on their interest payment obligations with respect to the bonds previously held 
    and thus the Fund had stopped accruing interest on its UAL bonds. On February 1, 2006, UAL emerged 
    from federal bankruptcy with the acceptance of its reorganization plan by the bankruptcy court. Under the 
    settlement agreement established to meet UAL’s unsecured bond obligations, the bondholders, including 
    the Fund, received three distributions of UAL common stock over the subsequent months, and the 
    bankruptcy court dismissed all unsecured claims of bondholders, including those of the Fund. On May 5, 
    2006, the Fund liquidated such UAL common stock holdings. On September 29, 2006 and May 30, 2007, 
    the Fund received additional distributions of 1,825 and 592 shares, respectively, of UAL common stock as 
    a result of its earlier ownership of the UAL bonds. The Fund liquidated 1,825 shares of such UAL common 
    stock holdings on November 15, 2006. The Fund received an additional distribution of 165 UAL common 
    stock shares on November 14, 2007. The remaining 757 shares of UAL common stock were still held by 
    the Fund at June 30, 2009. 
N/A    Not applicable. 
N/R    Not rated. 
(ETM)    Escrowed to maturity. 
(IF)    Inverse floating rate investment. 
(UB)    Underlying bond of an inverse floating rate trust reflected as a financing transaction pursuant to the 
    provisions of SFAS No. 140. 


Item 2. Controls and Procedures.

  1. The registrant's principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act") (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).
  2. There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting.

Item 3. Exhibits.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)), exactly as set forth below: See EX-99 CERT attached hereto.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant)         Nuveen Select Tax-Free Income Portfolio 2         

By (Signature and Title)          /s/ Kevin J. McCarthy                    
                                                  Kevin J. McCarthy
                                                  Vice President and Secretary

Date         August 28, 2009        

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title)         /s/ Gifford R. Zimmerman                    
                                                 Gifford R. Zimmerman
                                                 Chief Administrative Officer (principal executive officer) 

Date         August 28, 2009        

By (Signature and Title)         /s/ Stephen D. Foy                              
                                                 Stephen D. Foy
                                                 Vice President and Controller (principal financial officer) 

Date        August 28, 2009