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         811-7056         

        Nuveen Select Maturities Municipal Fund         
(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:            03/31          

Date of reporting period:         12/31/07         

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 Maturities Municipal Fund (NIM)             
    December 31, 2007             
Principal        Optional Call         
Amount (000)    Description (1)    Provisions (2)    Ratings (3)    Value 

    Alabama – 2.1%             
$          2,000    Alabama 21st Century Authority, Tobacco Settlement Revenue Bonds, Series 2001, 5.750%, 12/01/17    12/11 at 101.00    A–   $   2,071,680 
500    Marshall County Healthcare Authority, Alabama, Revenue Bonds, Series 2002A, 6.250%, 1/01/22    1/12 at 101.00    A–    529,770 

2,500    Total Alabama            2,601,450 

    Arizona – 1.1%             
250    Phoenix Industrial Development Authority, Arizona, Statewide Single Family Mortgage Revenue    4/08 at 101.50    AAA    257,348 
     Bonds, Series 1998C, 6.650%, 10/01/29 (Alternative Minimum Tax)             
200    Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Series 2007,    No Opt. Call    AA    187,482 
     5.000%, 12/01/37             
750    Surprise Municipal Property Corporation, Arizona, Wastewater System Revenue Bonds, Series    4/11 at 100.00    N/R    737,700 
     2007, 4.500%, 4/01/17             
265    Winslow Industrial Development Authority, Arizona, Hospital Revenue Bonds, Winslow Memorial    No Opt. Call    N/R    264,515 
     Hospital, Series 1998, 5.750%, 6/01/08             

1,465    Total Arizona            1,447,045 

    Arkansas – 4.1%             
1,000    Fort Smith, Arkansas, Water and Sewer Revenue Refunding and Construction Bonds, Series 2002A,    10/11 at 100.00    AAA    1,067,470 
     5.250%, 10/01/17 – FSA Insured             
1,500    Jefferson County, Arkansas, Pollution Control Revenue Bonds, Entergy Arkansas Inc. Project,    6/11 at 100.00    A–    1,485,270 
     Series 2006, 4.600%, 10/01/17             
1,000    Jonesboro, Arkansas, Industrial Development Revenue Bonds, Anheuser Busch Inc. Project, Series    No Opt. Call    A    1,051,130 
     2002, 4.600%, 11/15/12             
1,380    North Little Rock, Arkansas, Electric Revenue Refunding Bonds, Series 1992A, 6.500%, 7/01/15 –    No Opt. Call    AAA    1,571,654 
     MBIA Insured             

4,880    Total Arkansas            5,175,524 

    California – 1.7%             
2,115    Vernon, California, Electric System Revenue Bonds, Malburg Generating Station Project, Series    4/08 at 100.00    Aaa    2,127,056 
     2003C, 5.250%, 4/01/17 (Pre-refunded 4/01/08)             

    Colorado – 13.3%             
2,895    Centennial Downs Metropolitan District, Colorado, General Obligation Bonds, Series 1999,    12/14 at 100.00    AAA    3,091,773 
     5.000%, 12/01/20 – AMBAC Insured             
1,175    Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds,    12/13 at 100.00    AAA    1,205,397 
     Classical Academy, Series 2003, 4.500%, 12/01/18 – XLCA Insured             
1,290    Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Douglas    7/12 at 100.00    BBB    1,317,374 
     County School District RE-1 – DCS Montessori School, Series 2002A, 6.000%, 7/15/22             
330    Colorado Housing Finance Authority, Single Family Program Senior Bonds, Series 2000D-2,    4/10 at 105.00    AA    344,758 
     6.900%, 4/01/29 (Alternative Minimum Tax)             
1,025    Denver Health and Hospitals Authority, Colorado, Healthcare Revenue Bonds, Series 2001A,    12/11 at 100.00    BBB (4)    1,126,065 
     6.000%, 12/01/23 (Pre-refunded 12/01/11)             
1,465    Denver West Metropolitan District, Colorado, General Obligation Refunding and Improvement    12/13 at 100.00    AA    1,420,786 
     Bonds, Series 2003, 4.500%, 12/01/18 – RAAI Insured             
1,340    Eagle Bend Metropolitan District 2, Colorado, General Obligation Bonds, Series 2004, 5.000%,    12/14 at 101.00    AA    1,375,175 
     12/01/20 – RAAI Insured             
53    El Paso County, Colorado, FNMA Mortgage-Backed Single Family Revenue Refunding Bonds, Series    No Opt. Call    Aaa    55,423 
     1992A-2, 8.750%, 6/01/11             
700    Erie, Boulder and Weld Counties, Colorado, Water Enterprise Revenue Bonds, Series 1998,    12/08 at 100.00    N/R (4)    712,516 
     5.000%, 12/01/23 (Pre-refunded 12/01/08) – ACA Insured             
1,050    Erie, Boulder and Weld Counties, Colorado, Water Enterprise Revenue Bonds, Series 1998,    12/08 at 100.00    CCC    975,272 
     5.000%, 12/01/23 – ACA Insured             
70    Northwest Parkway Public Highway Authority, Colorado, Revenue Bonds, Senior Series 2001A,    6/11 at 102.00    AAA    75,565 
     5.250%, 6/15/41 (Pre-refunded 6/15/11) – FSA Insured             
5,875    Northwest Parkway Public Highway Authority, Colorado, Senior Lien Revenue Bonds, Series 2001B,    6/11 at 38.04    AAA    1,987,219 
     0.000%, 6/15/27 (Pre-refunded 6/15/11) – AMBAC Insured             
2,845    University of Colorado Hospital Authority, Revenue Bonds, Series 2001A, 5.600%, 11/15/21    11/11 at 100.00    Baa1 (4)    3,081,448 
     (Pre-refunded 11/15/11)             

20,113    Total Colorado            16,768,771 

    Connecticut – 1.6%             
    Eastern Connecticut Resource Recovery Authority, Solid Waste Revenue Bonds, Wheelabrator             
    Lisbon Project, Series 1993A:             
450     5.500%, 1/01/14 (Alternative Minimum Tax)    1/08 at 100.00    BBB    450,063 
1,570     5.500%, 1/01/15 (Alternative Minimum Tax)    1/08 at 100.00    BBB    1,570,157 

2,020    Total Connecticut            2,020,220 

    Florida – 5.0%             
2,400    Deltona, Florida, Utility Systems Water and Sewer Revenue Bonds, Series 2003, 5.250%,    10/13 at 100.00    AAA    2,613,000 
     10/01/17 – MBIA Insured             
1,000    Florida Citizens Property Insurance Corporation, High Risk Account Revenue Bonds, Series    No Opt. Call    AAA    1,072,540 
     2007A, 5.000%, 3/01/15 – MBIA Insured             
70    JEA, Florida, Electric Revenue Certificates, Series 1973-2, 6.800%, 7/01/12 (ETM)    No Opt. Call    AAA    76,000 
2,000    Orange County, Florida, Tourist Development Tax Revenue Bonds, Series 2005, 5.000%, 10/01/22 –    10/15 at 100.00    AAA    2,112,240 
     AMBAC Insured             
320    Port Everglades Authority, Florida, Port Facilities Revenue Bonds, Series 1986, 7.125%,    No Opt. Call    AAA    374,333 
     11/01/16 (ETM)             

5,790    Total Florida            6,248,113 

    Georgia – 0.4%             
445    Cherokee County Water and Sewerage Authority, Georgia, Revenue Bonds, Series 1995, 5.200%,    8/22 at 100.00    AAA    485,864 
     8/01/25 (Pre-refunded 8/01/22) – MBIA Insured             

    Illinois – 14.0%             
715    Chicago, Illinois, Tax Increment Allocation Bonds, Irving/Cicero Redevelopment Project, Series    1/09 at 100.00    N/R    728,328 
     1998, 7.000%, 1/01/14             
1,500    Cook County Township High School District 208, Illinois, General Obligation Bonds, Series    12/15 at 100.00    Aaa    1,594,080 
     2006, 5.000%, 12/01/21 – MBIA Insured             
2,000    Huntley, Illinois, Special Service Area 9, Special Tax Bonds, Series 2007, 5.100%, 3/01/28 –    3/17 at 100.00    AAA    2,077,320 
     AGC Insured             
4,875    Illinois Development Finance Authority, GNMA Collateralized Mortgage Revenue Bonds, Greek    4/11 at 105.00    Aaa    5,408,516 
     American Nursing Home Committee, Series 2000A, 7.600%, 4/20/40             
2,000    Illinois Development Finance Authority, Revenue Refunding Bonds, Olin Corporation, Series    4/10 at 102.00    BBB–    2,083,480 
     1993D, 6.750%, 3/01/16             
2,000    Illinois Educational Facilities Authority, Revenue Bonds, Art Institute of Chicago, Series    3/14 at 102.00    A1    2,044,860 
     2000, 4.450%, 3/01/34 (Mandatory put 3/01/15)             
1,000    Illinois Educational Facilities Authority, Student Housing Revenue Bonds, Educational    5/12 at 101.00    Aaa    1,143,820 
     Advancement Foundation Fund, University Center Project, Series 2002, 6.625%, 5/01/17             
     (Pre-refunded 5/01/12)             
250    Illinois Finance Authority, Revenue Bonds, Roosevelt University, Series 2007, 5.250%, 4/01/22    4/17 at 100.00    Baa1    248,863 
25    Illinois Health Facilities Authority, Revenue Bonds, Condell Medical Center, Series 2000,    5/10 at 101.00    Baa2    26,118 
     6.350%, 5/15/15             
    Illinois Health Facilities Authority, Revenue Bonds, Condell Medical Center, Series 2002:             
100     5.250%, 5/15/11    No Opt. Call    Baa2    102,710 
20     5.250%, 5/15/12    No Opt. Call    Baa2    20,560 
100    Illinois Health Facilities Authority, Revenue Bonds, Lutheran General Health System, Series    No Opt. Call    AAA    105,660 
     1993A, 6.125%, 4/01/12 – FSA Insured (ETM)             
695    Illinois Health Facilities Authority, Revenue Bonds, Silver Cross Hospital and Medical    8/09 at 101.00    A    709,936 
     Centers, Series 1999, 5.500%, 8/15/19             
515    Illinois Health Facilities Authority, Revenue Bonds, Silver Cross Hospital and Medical    8/09 at 101.00    A (4)    538,742 
     Centers, Series 1999, 5.500%, 8/15/19 (Pre-refunded 8/15/09)             
1,355    Kane & DeKalb Counties, Illinois, Community United School District 301, General Obligation    No Opt. Call    Aaa    855,249 
     Bonds, Series 2006, 0.000%, 12/01/18 – MBIA Insured             

17,150    Total Illinois            17,688,242 

    Iowa – 2.3%             
1,000    Iowa Finance Authority, Healthcare Revenue Bonds, Genesis Medical Center, Series 2000,    7/10 at 100.00    A1    1,039,510 
     6.250%, 7/01/25             
1,800    Iowa Tobacco Settlement Authority, Tobacco Settlement Asset-Backed Revenue Bonds, Series    6/11 at 101.00    AAA    1,914,858 
     2001B, 5.300%, 6/01/25 (Pre-refunded 6/01/11)             

2,800    Total Iowa            2,954,368 

    Kansas – 2.9%             
3,500    Wichita, Kansas, Hospital Facilities Revenue Refunding and Improvement Bonds, Via Christi    11/11 at 101.00    A+    3,615,990 
     Health System Inc., Series 2001-III, 5.500%, 11/15/21             

    Kentucky – 1.4%             
1,695    Kentucky Housing Corporation, Housing Revenue Bonds, Series 2005G, 5.000%, 7/01/30    1/15 at 100.60    AAA    1,751,410 
     (Alternative Minimum Tax)             

    Louisiana – 0.4%             
500    Louisiana Public Facilities Authority, Revenue Bonds, Baton Rouge General Hospital, Series    7/14 at 100.00    AAA    520,505 
     2004, 5.250%, 7/01/24 – MBIA Insured             

    Maryland – 0.9%             
1,100    Maryland Energy Financing Administration, Revenue Bonds, AES Warrior Run Project, Series 1995,    3/08 at 100.00    N/R    1,102,519 
     7.400%, 9/01/19 (Alternative Minimum Tax)             

    Massachusetts – 2.0%             
500    Massachusetts Development Finance Agency, Revenue Bonds, Orchard Cove, Series 2007,    10/17 at 100.00    BBB–    469,460 
     5.000%, 10/01/19             
1,460    Massachusetts Housing Finance Agency, Rental Housing Mortgage Revenue Bonds, Series 2000H,    7/10 at 100.00    AAA    1,511,523 
     6.650%, 7/01/41 – MBIA Insured (Alternative Minimum Tax)             
    Massachusetts Port Authority, Special Facilities Revenue Bonds, Delta Air Lines Inc.,             
    Series 2001A:             
100     5.200%, 1/01/20 – AMBAC Insured (Alternative Minimum Tax)    1/11 at 101.00    AAA    102,592 
435     5.000%, 1/01/27 – AMBAC Insured (Alternative Minimum Tax)    1/11 at 101.00    AAA    435,857 

2,495    Total Massachusetts            2,519,432 

    Michigan – 1.7%             
1,000    Cornell Township Economic Development Corporation, Michigan, Environmental Improvement Revenue    5/12 at 100.00    AAA    1,102,490 
     Refunding Bonds, MeadWestvaco Corporation-Escanaba Project, Series 2002, 5.875%, 5/01/18             
     (Pre-refunded 5/01/12)             
600    Michigan State Hospital Finance Authority, Hospital Revenue Refunding Bonds, Sinai Hospital,    1/08 at 100.00    Ba3    600,216 
     Series 1995, 6.625%, 1/01/16             
470    Michigan State Hospital Finance Authority, Revenue Refunding Bonds, Detroit Medical Center,    2/08 at 100.00    BB–    470,479 
     Series 1988A, 8.125%, 8/15/12             

2,070    Total Michigan            2,173,185 

    Minnesota – 0.7%             
825    White Earth Band of Chippewa Indians, Minnesota, Revenue Bonds, Series 2000A, 7.000%,    No Opt. Call    CCC    845,196 
     12/01/11 – ACA Insured             

    Mississippi – 0.8%             
    Mississippi Hospital Equipment and Facilities Authority, Revenue Bonds, Baptist Memorial             
    Healthcare, Series 2004B-1:             
700     5.000%, 9/01/16    No Opt. Call    N/R    735,343 
300     5.000%, 9/01/24    9/14 at 100.00    N/R    303,966 

1,000    Total Mississippi            1,039,309 

    Montana – 0.0%             
50    University of Montana, Revenue Bonds, Series 1996D, 5.375%, 5/15/19 – MBIA Insured (ETM)    3/08 at 102.00    AAA    55,703 

    Nebraska – 0.9%             
1,000    Dodge County School District 1, Nebraska, Fremont Public Schools, General Obligation Bonds,    12/14 at 100.00    Aaa    1,073,860 
     Series 2004, 5.000%, 12/15/19 – FSA Insured             

    Nevada – 0.5%             
800    Director of Nevada State Department of Business and Industry, Revenue Bonds, Las Vegas    No Opt. Call    AAA    567,728 
     Monorail Project, First Tier, Series 2000, 0.000%, 1/01/15 – AMBAC Insured             

    New Jersey – 0.4%             
500    Bayonne Redevelopment Agency, New Jersey, Revenue Bonds, Royal Caribbean Cruises Project,    No Opt. Call    BBB–    507,035 
     Series 2006A, 4.750%, 11/01/16 (Alternative Minimum Tax)             

    New York – 6.2%             
1,000    Dormitory Authority of the State of New York, Revenue Bonds, Brooklyn Law School, Series    7/13 at 100.00    AA    1,051,230 
     2003A, 5.500%, 7/01/15 – RAAI Insured             
1,500    New York State Energy Research and Development Authority, Facilities Revenue Bonds,    3/08 at 100.00    A1    1,500,960 
     Consolidated Edison Company Inc., Series 2001A, 4.700%, 6/01/36 (Mandatory put 10/01/12)             
     (Alternative Minimum Tax)             
370    New York State Medical Care Facilities Finance Agency, FHA-Insured Mortgage Hospital and    2/08 at 100.00    AA+    371,191 
     Nursing Home Revenue Bonds, Series 1995C, 6.100%, 8/15/15             
4,300    Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air    No Opt. Call    AAA    4,914,126 
     Terminal LLC, Sixth Series 1997, 7.000%, 12/01/12 – MBIA Insured (Alternative Minimum Tax)             

7,170    Total New York            7,837,507 

    North Carolina – 1.6%             
1,880    Union County, North Carolina, Certificates of Participation, Series 2003, 5.000%, 6/01/18 –    6/13 at 101.00    AAA    2,005,264 
     AMBAC Insured             

    Ohio – 1.5%             
870    Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue    6/17 at 100.00    BBB    823,733 
     Bonds, Senior Lien, Series 2007A-2, 5.125%, 6/01/24             
1,000    Toledo-Lucas County Port Authority, Ohio, Port Revenue Bonds, Cargill Inc., Series 2004B,    No Opt. Call    A    1,028,820 
     4.500%, 12/01/15             

1,870    Total Ohio            1,852,553 

    Oklahoma – 0.9%             
1,150    Oklahoma State Industries Authority, Health System Revenue Refunding Bonds, Baptist Medical    2/08 at 101.00    AAA    1,161,972 
     Center, Series 1995D, 5.000%, 8/15/14 – AMBAC Insured             

    Pennsylvania – 7.0%             
1,120    Pennsylvania Higher Educational Facilities Authority, College Revenue Bonds, Ninth Series    No Opt. Call    Aaa    1,277,730 
     1976, 7.625%, 7/01/15 (ETM)             
4,120    Philadelphia Gas Works, Pennsylvania, Revenue Bonds, Eighteenth Series 2004, 5.000%, 8/01/15 –    8/14 at 100.00    AAA    4,418,576 
     AMBAC Insured             
1,605    Philadelphia Gas Works, Pennsylvania, Revenue Bonds, Twelfth Series 1990B, 7.000%, 5/15/20 –    No Opt. Call    AAA    1,928,440 
     MBIA Insured (ETM)             
1,085    Pittsburgh School District, Allegheny County, Pennsylvania, General Obligation Bonds, Series    No Opt. Call    AAA    1,164,031 
     2006B, 5.000%, 9/01/12 – AMBAC Insured             

7,930    Total Pennsylvania            8,788,777 

    South Carolina – 6.4%             
750    Berkeley County School District, South Carolina, Installment Purchase Revenue Bonds, Securing    12/13 at 100.00    A–    774,975 
     Assets for Education, Series 2003, 5.250%, 12/01/19             
1,540    Piedmont Municipal Power Agency, South Carolina, Electric Revenue Bonds, Series 1991, 6.750%,    No Opt. Call    AAA    1,942,972 
     1/01/19 – FGIC Insured (ETM)             
2,835    Piedmont Municipal Power Agency, South Carolina, Electric Revenue Bonds, Series 1991, 6.750%,    No Opt. Call    AAA    3,501,934 
     1/01/19 – FGIC Insured             
25    South Carolina JOBS Economic Development Authority, Economic Development Revenue Bonds, Bon    11/12 at 100.00    A–    25,434 
     Secours Health System Inc., Series 2002A, 5.625%, 11/15/30             
1,260    South Carolina JOBS Economic Development Authority, Hospital Revenue Bonds, Palmetto Health    No Opt. Call    Baa2 (4)    1,341,106 
     Alliance, Series 2000A, 7.000%, 12/15/10 (ETM)             
500    Tobacco Settlement Revenue Management Authority, South Carolina, Tobacco Settlement    5/11 at 101.00    BBB    510,165 
     Asset-Backed Bonds, Series 2001B, 6.000%, 5/15/22             

6,910    Total South Carolina            8,096,586 

    South Dakota – 0.8%             
1,000    South Dakota Health and Educational Facilities Authority, Revenue Bonds, Sanford Health,    5/17 at 100.00    AA–    1,012,960 
     Series 2007, 5.000%, 11/01/27             

    Tennessee – 1.8%             
    Shelby County Health, Educational and Housing Facilities Board, Tennessee, Hospital Revenue             
    Bonds, Methodist Healthcare, Series 2002:             
750     6.000%, 9/01/17 (Pre-refunded 9/01/12)    9/12 at 100.00    A– (4)    839,115 
1,250     6.000%, 9/01/17 (Pre-refunded 9/01/12)    9/12 at 100.00    A– (4)    1,398,525 

2,000    Total Tennessee            2,237,640 

    Texas – 6.7%             
1,055    Austin, Texas, General Obligation Bonds, Series 2004, 5.000%, 9/01/20 – MBIA Insured    9/14 at 100.00    AAA    1,119,313 
565    Bexar County Housing Finance Corporation, Texas, FNMA Guaranteed Multifamily Housing Revenue    No Opt. Call    AAA    577,854 
     Bonds, Villas Sonterra Apartments Project, Series 2007A, 4.700%, 10/01/15 (Alternative             
     Minimum Tax)             
25    Brazos River Authority, Texas, Collateralized Pollution Control Revenue Bonds, Texas Utilities    No Opt. Call    Caa1    23,083 
     Electric Company, Series 2003D, 5.400%, 10/01/29 (Mandatory put 10/01/14)             
2,000    Brazos River Authority, Texas, Collateralized Revenue Refunding Bonds, CenterPoint Energy    6/14 at 100.00    AAA    2,040,140 
     Inc., Series 2004B, 4.250%, 12/01/17 – FGIC Insured             
500    Brazos River Authority, Texas, Pollution Control Revenue Refunding Bonds, TXU Electric    No Opt. Call    Caa1    479,165 
     Company, Series 2001C, 5.750%, 5/01/36 (Mandatory put 11/01/11) (Alternative Minimum Tax)             
15    Brazos River Authority, Texas, Pollution Control Revenue Refunding Bonds, TXU Energy Company    No Opt. Call    Caa1    14,832 
     LLC, Series 2003A, 6.750%, 4/01/38 (Mandatory put 4/01/13) (Alternative Minimum Tax)             
1,875    Denton Independent School District, Denton County, Texas, General Obligation Bonds, Series    8/16 at 100.00    AAA    2,009,813 
     2006, 5.000%, 8/15/20             
65    Galveston Property Finance Authority Inc., Texas, Single Family Mortgage Revenue Bonds, Series    3/08 at 100.00    Caa1    63,556 
     1991A, 8.500%, 9/01/11             
300    Kerrville Health Facilities Development Corporation, Texas, Revenue Bonds, Sid Peterson    No Opt. Call    BBB–    280,179 
     Memorial Hospital Project, Series 2005, 5.125%, 8/15/26             
25    Sabine River Authority, Texas, Pollution Control Revenue Bonds, TXU Energy Company LLC    No Opt. Call    Caa1    23,958 
     Project, Series 2001B, 5.750%, 5/01/30 (Mandatory put 11/01/11) (Alternative Minimum Tax)             
1,500    Texas Municipal Gas Acquisition and Supply Corporation I, Gas Supply Revenue Bonds, Series    1/08 at 100.00    A+    1,421,160 
     2006B, 3.893%, 12/15/17             
370    Tri-County Mental Health and Retardation Center, Texas, Revenue Bonds, Facilities Acquisition    3/08 at 100.00    AAA    371,850 
     Program, Series 1995E, 6.500%, 3/01/15 – FSA Insured             

8,295    Total Texas            8,424,903 

    Utah – 1.0%             
1,305    Bountiful, Davis County, Utah, Hospital Revenue Refunding Bonds, South Davis Community    No Opt. Call    N/R    1,301,124 
     Hospital Project, Series 1998, 6.000%, 12/15/10             

    Virginia – 0.2%             
250    Virginia College Building Authority, Educational Facilities Revenue Refunding Bonds, Marymount    7/08 at 101.00    AA    251,893 
     University, Series 1998, 5.100%, 7/01/18 – RAAI Insured             

    Washington – 2.7%             
1,130    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 1, Series    No Opt. Call    Aaa    1,152,521 
     1993A, 7.000%, 7/01/08 (ETM)             
1,870    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 1, Series    No Opt. Call    AAA    1,906,708 
     1993A, 7.000%, 7/01/08             
295    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 3, Series    No Opt. Call    AAA    366,532 
     1989B, 7.125%, 7/01/16 – MBIA Insured             

3,295    Total Washington            3,425,761 

    Wisconsin – 3.6%             
    Badger Tobacco Asset Securitization Corporation, Wisconsin, Tobacco Settlement Asset-Backed             
    Bonds, Series 2002:             
785     6.125%, 6/01/27    6/12 at 100.00    BBB    812,506 
1,480     6.375%, 6/01/32    6/12 at 100.00    BBB    1,500,868 
1,000    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Agnesian Healthcare    7/11 at 100.00    A–    1,038,240 
     Inc., Series 2001, 6.000%, 7/01/21             
1,150    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Aurora Health Care Inc.,    2/09 at 101.00    BBB+    1,155,279 
     Series 1999A, 5.500%, 2/15/20 – ACA Insured             

4,415    Total Wisconsin            4,506,893 

$       122,283    Total Investments (cost $121,162,365) – 98.6%        124,192,358 


    Other Assets Less Liabilities – 1.4%          1,820,765 

    Net Assets – 100%          126,013,123 



    The Fund may invest in “zero coupon” securities. A zero coupon security does not pay a regular interest 
    coupon to its holders during the life of the security. Tax-exempt income to the holder of the security 
    comes from accretion of the difference between the original purchase price of the security at issuance 
    and the par value of the security at maturity and is effectively paid at maturity. Such securities are 
    included in the Portfolio of Investments with a 0.000% coupon rate in their description. The market 
    prices of zero coupon securities generally are more volatile than the market prices of securities that 
    pay interest periodically. 
(1)    All percentages shown in the Portfolio of Investments are based on net assets unless otherwise noted. 
(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. 
    The AAA ratings shown in the Portfolio of Investments reflect the AAA ratings on certain bonds 
    insured by AMBAC, FGIC, XCLA or MBIA and/or the A ratings on certain bonds insured by ACA as of 
    December 31, 2007. During December 2007, at least one rating agency reduced the rating for ACA 
    bonds to CCC. Subsequent to December 31, 2007, at least one rating agency reduced the rating for 
    AMBAC-insured bonds to AA, the rating for XCLA-insured bonds to A and the rating for FGIC-insured 
    bonds to A3. One or more rating agencies have placed each of these insurers on “negative credit 
    watch”, which may presage one or more rating reductions for such insurer or insurers in the future. 
    If one or more insurers’ ratings are reduced below AAA (or A in the case of ACA) by these rating 
    agencies, it would likely reduce the effective rating of many of the bonds insured by that insurer 
    or insurers. 
(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. 
N/R    Not rated. 
(ETM)    Escrowed to maturity. 

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 the treatment of paydown gains and losses, timing differences in recognizing taxable market discount and timing differences in recognizing certain gains and losses on investment transactions. 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 value of the Fund. At December 31, 2007, the cost of investments was $121,100,813.

Gross unrealized appreciation and gross unrealized depreciation of investments at December 31, 2007, were as follows:


Gross unrealized:     
  Appreciation    $3,577,589 
  Depreciation    (486,044) 

Net unrealized appreciation (depreciation) of investments    $3,091,545 



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: 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 Maturities Municipal Fund         

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

Date         February 29, 2008        

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         February 29, 2008        

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

Date        February 29, 2008        

* Print the name and title of each signing officer under his or her signature.