UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    Form 13F

                               Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended:   March 31, 2010

Check here if Amendment [_]: Amendment Number:

This Amendment (Check only one): [_] is a restatement

                 [_] adds new holdings entries

Institutional Investment Manager Filing this Report:

Name:     First Commonwealth Financial Corporation
Address:  22 North Sixth Street
          Indiana, PA, 15701

Form 13F File Number:28-05151

The institutional investment manager filing this report and the person
by whom it is signed hereby represent that the person signing the report is
authorized to submit it, that all information contained herein is true,
correct and complete, and it is understood that all required items,
statements, schedules, lists, and tables, are considered integral parts of
this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:     Teresa M. Ciambotti
Title:    Senior Vice President and Controller
Phone:    (724) 463-4725

Signature, Place, and Date of Signing:

/s/ Teresa M. Ciambotti
Teresa M. Ciambotti,      Indiana, PA,           May 12, 2010

Report Type (check only one):

     [x]  13F HOLDINGS REPORT (Check here if all holdings of this reporting
          manager are reported in this report

     [_]  13F NOTICE (Check here if no holdings reported are in this report, and
          all holdings are reported by other reporting manager(s))

     [_]  13F COMBINATION REPORT (Check here if a portion of the holdings for
          this reporting manager are reported in this report and a portion are
          reported by other reporting manager(s).)




                              Form 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:  1

Form 13F Information Table Entry Total: 183

Form 13F Information Table Value Total: $87,397 (thousands)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all
institutional investment managers with respect to which this report is
filed, other than the manager filing this report.

Number:  1

Form 13F File Number: 28-11893

Name:




                           FORM 13F INFORMATION TABLE



COLUMN  1                     COL 2  COL 3     COL 4    COLUMN 5           COL 6      COL 7    COLUMN 8
                              TITLE            MARKET                                          VOTING
                              OF               VALUE    SHS OR    SH/ PUT/ INVESTMENT OTHER    AUTHORITY
ISSUER                        CLASS  CUSIP     (X$1000) PRN AMT   PRN CALL DISCRETION MANAGERS SOLE      SHARED  NONE
----------------------------  ------ --------- -------- --------- --- ---- ---------- -------- --------- ------ -----
                                                                               
3M CO                         COMMON 88579Y101      264     3,160  SH      DEFINED        1        2,170          990
3M CO                         COMMON 88579Y101      713     8,535  SH      OTHER          1        8,535
ABBOTT LABS                   COMMON 002824100      901    17,106  SH      DEFINED        1       15,499        1,607
ABBOTT LABS                   COMMON 002824100       60     1,138  SH      OTHER          1        1,138
ADOBE SYS INC                 COMMON 00724F101      593    16,757  SH      DEFINED        1       16,757
ADOBE SYS INC                 COMMON 00724F101       21       601  SH      OTHER          1          601
AIR PRODS & CHEMS INC         COMMON 009158106      603     8,150  SH      DEFINED        1        8,150
AIR PRODS & CHEMS INC         COMMON 009158106       37       497  SH      OTHER          1          497
ALLSTATE CORP                 COMMON 020002101       82     2,534  SH      DEFINED        1        2,534
ALLSTATE CORP                 COMMON 020002101      211     6,529  SH      OTHER          1        6,529
ALTRIA GROUP INC              COMMON 02209S103       38     1,844  SH      DEFINED        1        1,738          106
ALTRIA GROUP INC              COMMON 02209S103      649    31,640  SH      OTHER          1       31,640
APACHE CORP                   COMMON 037411105      710     6,993  SH      DEFINED        1        6,993
APACHE CORP                   COMMON 037411105      110     1,079  SH      OTHER          1          535    544
APPLE INC                     COMMON 037833100    1,112     4,734  SH      DEFINED        1        4,717           17
APPLE INC                     COMMON 037833100       41       175  SH      OTHER          1          175
AT&T INC                      COMMON 00206R102    1,276    49,378  SH      DEFINED        1       46,833        2,545
AT&T INC                      COMMON 00206R102      244     9,424  SH      OTHER          1        9,119    300     5
AUTODESK INC                  COMMON 052769106      410    13,953  SH      DEFINED        1       13,953
AUTODESK INC                  COMMON 052769106       25       851  SH      OTHER          1          851
BANK OF AMERICA CORPORATION   COMMON 060505104      133     7,430  SH      DEFINED        1        1,174        6,256
BANK OF AMERICA CORPORATION   COMMON 060505104      172     9,611  SH      OTHER          1        9,611
BANK OF NEW YORK MELLON CORP  COMMON 064058100      357    11,576  SH      DEFINED        1        9,066        2,510
BANK OF NEW YORK MELLON CORP  COMMON 064058100      112     3,612  SH      OTHER          1        1,372    490 1,750
BECTON DICKINSON & CO         COMMON 075887109      725     9,207  SH      DEFINED        1        8,919          288
BECTON DICKINSON & CO         COMMON 075887109       76       969  SH      OTHER          1          969
BERKSHIRE SECURITIES          COMMON 084991868    1,159     5,600  SH      DEFINED        1        5,600
BERKSHIRE SECURITIES          COMMON 084991868      373     1,800  SH      OTHER          1        1,800
BOEING CO                     COMMON 097023105       38       525  SH      DEFINED        1          525
BOEING CO                     COMMON 097023105      264     3,636  SH      OTHER          1        3,636
BP PLC                        COMMON 055622104      669    11,726  SH      DEFINED        1       11,657           69
BP PLC                        COMMON 055622104      420     7,365  SH      OTHER          1        6,363  1,002
BP PRUDHOE BAY RTY TR         COMMON 055630107       20       200  SH      DEFINED        1          200
BP PRUDHOE BAY RTY TR         COMMON 055630107      197     2,000  SH      OTHER          1        2,000
CATERPILLAR INC DEL           COMMON 149123101      614     9,766  SH      DEFINED        1        9,766
CATERPILLAR INC DEL           COMMON 149123101      185     2,950  SH      OTHER          1        2,950
CHEVRON CORP NEW              COMMON 166764100    1,002    13,215  SH      DEFINED        1       10,974        2,241
CHEVRON CORP NEW              COMMON 166764100      480     6,327  SH      OTHER          1        5,977          350
CISCO SYS INC                 COMMON 17275R102      926    35,588  SH      DEFINED        1       31,118        4,470
CISCO SYS INC                 COMMON 17275R102      238     9,134  SH      OTHER          1        8,984    150
CITIGROUP INC                 COMMON 172967101        9     2,312  SH      DEFINED        1        2,312
CITIGROUP INC                 COMMON 172967101      247    61,025  SH      OTHER          1       60,911    114
CNB FINL CORP PA              COMMON 126128107      443    28,700  SH      DEFINED        1       28,700
COCA COLA CO                  COMMON 191216100      478     8,686  SH      DEFINED        1        8,437    200    49
COCA COLA CO                  COMMON 191216100       53       956  SH      OTHER          1          956
CONOCOPHILLIPS                COMMON 20825C104      529    10,342  SH      DEFINED        1        8,330        2,012
CONOCOPHILLIPS                COMMON 20825C104      125     2,449  SH      OTHER          1        2,369     80
CVS CAREMARK CORPORATION      COMMON 126650100      641    17,540  SH      DEFINED        1       17,540
CVS CAREMARK CORPORATION      COMMON 126650100       40     1,087  SH      OTHER          1        1,087
DISNEY WALT CO                COMMON 254687106      300     8,593  SH      DEFINED        1        5,864        2,729
DISNEY WALT CO                COMMON 254687106       28       800  SH      OTHER          1          800
DOMINION RES INC VA NEW       COMMON 25746U109      694    16,888  SH      DEFINED        1       16,236          652
DOMINION RES INC VA NEW       COMMON 25746U109      139     3,386  SH      OTHER          1        3,386
DU PONT E I DE NEMOURS & CO   COMMON 263534109      250     6,704  SH      DEFINED        1        6,704
DU PONT E I DE NEMOURS & CO   COMMON 263534109       54     1,442  SH      OTHER          1        1,142    300
EMBRYO DEV CORP               COMMON 290818103       --    15,000  SH      DEFINED        1       15,000
EMERSON ELEC CO               COMMON 291011104    2,329    46,268  SH      DEFINED        1       45,328          940
EMERSON ELEC CO               COMMON 291011104      811    16,110  SH      OTHER          1       16,110
ENTERPRISE PRODS PARTNERS L   COMMON 293792107       36     1,034  SH      DEFINED        1        1,034
ENTERPRISE PRODS PARTNERS L   COMMON 293792107      203     5,860  SH      OTHER          1        5,860
ESB FINANCIAL CORP            COMMON 26884F102      133    10,310  SH      DEFINED                10,310     --    --
EXXON MOBIL CORP              COMMON 30231G102    2,586    38,608  SH      DEFINED        1       38,608
EXXON MOBIL CORP              COMMON 30231G102    1,850    27,620  SH      OTHER          1       10,683 16,937
FEDEX CORP                    COMMON 31428X106      405     4,334  SH      DEFINED        1        4,334
FEDEX CORP                    COMMON 31428X106       26       283  SH      OTHER          1          283
FIRST COMWLTH FINL CORP PA    COMMON 319829107    6,116   911,518  SH      DEFINED        1      908,052  3,466
FIRST COMWLTH FINL CORP PA    COMMON 319829107      120    17,881  SH      OTHER          1        8,052  9,829
FIRSTMERIT CORP               COMMON 337915102      219    10,145  SH      DEFINED                10,145     --    --
FNB CORP PA                   COMMON 302520101       83    10,224  SH      DEFINED        1       10,224
FNB CORP PA                   COMMON 302520101       --        43  SH      OTHER          1           43
FREEPORT-MCMORAN COPPER & GO  COMMON 35671D857      257     3,073  SH      DEFINED        1        3,073
FREEPORT-MCMORAN COPPER & GO  COMMON 35671D857        2        24  SH      OTHER          1           24
GATEWAY BANK OF PENNSYLVANIA  COMMON 869099101       46     5,000  SH      DEFINED                 5,000     --    --
GENERAL ELECTRIC CO           COMMON 369604103      920    50,570  SH      DEFINED        1       45,760        4,810
GENERAL ELECTRIC CO           COMMON 369604103    2,218   121,861  SH      OTHER          1      119,891  1,630   340
GENERAL MLS INC               COMMON 370334104      749    10,578  SH      DEFINED        1       10,578
GENERAL MLS INC               COMMON 370334104       46       655  SH      OTHER          1          655
GENUINE PARTS CO              COMMON 372460105      673    15,940  SH      DEFINED        1       15,940
GENUINE PARTS CO              COMMON 372460105       19       445  SH      OTHER          1          445
GOLDMAN SACHS GROUP INC       COMMON 38141G104      588     3,445  SH      DEFINED        1        3,445
GOLDMAN SACHS GROUP INC       COMMON 38141G104       47       273  SH      OTHER          1          273
GOOGLE INC                    COMMON 38259P508      837     1,475  SH      DEFINED        1        1,275          200







COLUMN  1                     COL 2  COL 3     COL 4    COLUMN 5           COL 6      COL 7    COLUMN 8
                              TITLE            MARKET                                          VOTING
                              OF               VALUE    SHS OR    SH/ PUT/ INVESTMENT OTHER    AUTHORITY
ISSUER                        CLASS  CUSIP     (X$1000) PRN AMT   PRN CALL DISCRETION MANAGERS SOLE      SHARED  NONE
----------------------------  ------ --------- -------- --------- --- ---- ---------- -------- --------- ------ -----
                                                                               
GOOGLE INC                    COMMON 38259P508       15        27  SH      OTHER          1           27
HEINZ H J CO                  COMMON 423074103      472    10,346  SH      DEFINED        1       10,250           96
HEINZ H J CO                  COMMON 423074103       38       838  SH      OTHER          1          838
HELMERICH & PAYNE INC         COMMON 423452101      292     7,670  SH      DEFINED        1        7,670
HELMERICH & PAYNE INC         COMMON 423452101       19       496  SH      OTHER          1          496
INGERSOLL-RAND PLC            COMMON G47791101      209     6,000  SH      OTHER          1        6,000
INTEL CORP                    COMMON 458140100      498    22,346  SH      DEFINED        1       16,906        5,440
INTEL CORP                    COMMON 458140100      143     6,412  SH      OTHER          1        6,262          150
INTERNATIONAL BUSINESS MACHS  COMMON 459200101    1,449    11,301  SH      DEFINED        1       11,056          245
INTERNATIONAL BUSINESS MACHS  COMMON 459200101    1,835    14,310  SH      OTHER          1       14,210    100
JACOBS ENGR GROUP INC DEL     COMMON 469814107      638    14,110  SH      DEFINED        1       14,110
JACOBS ENGR GROUP INC DEL     COMMON 469814107       29       643  SH      OTHER          1          643
JOHNSON & JOHNSON             COMMON 478160104    1,051    16,118  SH      DEFINED        1       15,614          504
JOHNSON & JOHNSON             COMMON 478160104      586     8,981  SH      OTHER          1        8,911     70
JPMORGAN CHASE & CO           COMMON 46625H100      935    20,893  SH      DEFINED        1       19,013        1,880
JPMORGAN CHASE & CO           COMMON 46625H100      208     4,638  SH      OTHER          1        4,638
KRAFT FOODS INC               COMMON 50075N104        4       139  SH      DEFINED        1          139
KRAFT FOODS INC               COMMON 50075N104      662    21,876  SH      OTHER          1       21,876
L-3 COMMUNICATIONS HLDGS INC  COMMON 502424104      567     6,187  SH      DEFINED        1        5,901          286
L-3 COMMUNICATIONS HLDGS INC  COMMON 502424104       37       407  SH      OTHER          1          407
LOWES COS INC                 COMMON 548661107      179     7,397  SH      DEFINED        1        7,397
LOWES COS INC                 COMMON 548661107       91     3,743  SH      OTHER          1        2,933    810
MCDONALDS CORP                COMMON 580135101      913    13,690  SH      DEFINED        1       13,295          395
MCDONALDS CORP                COMMON 580135101       70     1,053  SH      OTHER          1        1,053
MERCK & CO INC NEW            COMMON 58933Y105       89     2,386  SH      DEFINED        1        2,360           26
MERCK & CO INC NEW            COMMON 58933Y105      852    22,810  SH      OTHER          1       22,310          500
METLIFE INC                   COMMON 59156R108      511    11,786  SH      DEFINED        1       11,786
METLIFE INC                   COMMON 59156R108        8       188  SH      OTHER          1          188
MICROSOFT CORP                COMMON 594918104    1,017    34,736  SH      DEFINED        1       30,637        4,099
MICROSOFT CORP                COMMON 594918104      221     7,540  SH      OTHER          1        7,350          190
MONSANTO CO NEW               COMMON 61166W101      470     6,579  SH      DEFINED        1        5,866          713
MONSANTO CO NEW               COMMON 61166W101       18       259  SH      OTHER          1          259
NEW MEXICO BANQUEST           COMMON 647991926    1,859     7,207  SH      DEFINED        1        7,207
NEW MEXICO BANQUEST           COMMON 647991926       59       229  SH      OTHER          1          229
ORACLE CORP                   COMMON 68389X105      818    31,808  SH      DEFINED        1       31,808
ORACLE CORP                   COMMON 68389X105       86     3,349  SH      OTHER          1        3,189    160
PARKER HANNIFIN CORP          COMMON 701094104      591     9,132  SH      DEFINED        1        9,132
PARKER HANNIFIN CORP          COMMON 701094104       42       646  SH      OTHER          1          646
PARKVALE FINANCIAL CORP       COMMON 701492100      830   111,263  SH      DEFINED               111,263     --    --
PEPSICO INC                   COMMON 713448108      737    11,142  SH      DEFINED        1       10,717          425
PEPSICO INC                   COMMON 713448108    1,215    18,372  SH      OTHER          1       18,372
PETSMART INC                  COMMON 716768106      789    24,681  SH      DEFINED        1       22,581        2,100
PETSMART INC                  COMMON 716768106       28       862  SH      OTHER          1          862
PFIZER INC                    COMMON 717081103      111     6,486  SH      DEFINED        1        6,486
PFIZER INC                    COMMON 717081103      364    21,221  SH      OTHER          1       21,021          200
PHILIP MORRIS INTL INC        COMMON 718172109      810    15,527  SH      DEFINED        1       13,787        1,740
PHILIP MORRIS INTL INC        COMMON 718172109    1,449    27,773  SH      OTHER          1       27,773
PNC FINL SVCS GROUP INC       COMMON 693475105      227     3,807  SH      DEFINED        1        3,807
PNC FINL SVCS GROUP INC       COMMON 693475105      257     4,300  SH      OTHER          1        4,300
PPG INDS INC                  COMMON 693506107      203     3,104  SH      DEFINED        1        3,104
PPG INDS INC                  COMMON 693506107    1,155    17,654  SH      OTHER          1       15,154  2,500
PRECISION CASTPARTS CORP      COMMON 740189105      680     5,367  SH      DEFINED        1        5,367
PRECISION CASTPARTS CORP      COMMON 740189105       38       300  SH      OTHER          1          300
PRICE T ROWE GROUP INC        COMMON 74144T108      771    14,033  SH      DEFINED        1       13,594          439
PRICE T ROWE GROUP INC        COMMON 74144T108       81     1,473  SH      OTHER          1        1,473
PROCTER & GAMBLE CO           COMMON 742718109    1,083    17,123  SH      DEFINED        1       16,621          502
PROCTER & GAMBLE CO           COMMON 742718109    2,437    38,523  SH      OTHER          1       38,523
PRUDENTIAL FINL INC           COMMON 744320102      221     3,652  SH      DEFINED        1        3,652
PRUDENTIAL FINL INC           COMMON 744320102       15       251  SH      OTHER          1          251
PUBLIC SVC ENTERPRISE GROUP   COMMON 744573106       94     3,187  SH      DEFINED        1          287        2,900
PUBLIC SVC ENTERPRISE GROUP   COMMON 744573106      250     8,460  SH      OTHER          1        8,460
QUALCOMM INC                  COMMON 747525103      353     8,422  SH      DEFINED        1        8,422
QUALCOMM INC                  COMMON 747525103       12       277  SH      OTHER          1          277
ROCKWELL AUTOMATION INC       COMMON 773903109      247     4,382  SH      DEFINED        1        4,382
ROCKWELL AUTOMATION INC       COMMON 773903109       77     1,370  SH      OTHER          1        1,370
ROCKWELL COLLINS INC          COMMON 774341101      242     3,869  SH      DEFINED        1        3,869
ROCKWELL COLLINS INC          COMMON 774341101       99     1,580  SH      OTHER          1        1,580
S & T BANCORP INC             COMMON 783859101      912    43,634  SH      DEFINED        1       43,634
S & T BANCORP INC             COMMON 783859101       31     1,464  SH      OTHER          1        1,464
STATE STR CORP                COMMON 857477103      517    11,456  SH      DEFINED        1       11,456
STATE STR CORP                COMMON 857477103       21       474  SH      OTHER          1          394     80
SUSQUEHANNA BANCSHARES INC P  COMMON 869099101      512    52,242  SH      DEFINED        1       52,242
TARGET CORP                   COMMON 87612E106      734    13,955  SH      DEFINED        1       13,955
TARGET CORP                   COMMON 87612E106      238     4,516  SH      OTHER          1        4,516
TEVA PHARMACEUTICAL INDS LTD  COMMON 881624209      765    12,123  SH      DEFINED        1       12,072           51
TEVA PHARMACEUTICAL INDS LTD  COMMON 881624209       45       714  SH      OTHER          1          514    200
TEXAS INSTRS INC              COMMON 882508104      408    16,681  SH      DEFINED        1       14,571        2,110
TEXAS INSTRS INC              COMMON 882508104       38     1,567  SH      OTHER          1        1,567
THERMO FISHER SCIENTIFIC INC  COMMON 883556102      666    12,948  SH      DEFINED        1       12,948
THERMO FISHER SCIENTIFIC INC  COMMON 883556102       31       608  SH      OTHER          1          608
TIME WARNER CABLE INC         COMMON 88732J207      701    13,151  SH      DEFINED        1       13,151
TIME WARNER CABLE INC         COMMON 88732J207       25       465  SH      OTHER          1          465
TRANSOCEAN LTD                COMMON H8817H100      528     6,113  SH      DEFINED        1        4,905        1,208
TRANSOCEAN LTD                COMMON H8817H100       25       295  SH      OTHER          1          295
TRISTATE CAPITAL BANK         COMMON 99R733108      600    50,000  SH      DEFINED                50,000     --    --
US BANCORP DEL                COMMON 902973304      343    13,266  SH      DEFINED        1       13,266
US BANCORP DEL                COMMON 902973304       19       733  SH      OTHER          1          733
VERIZON COMMUNICATIONS INC    COMMON 92343V104    1,141    36,785  SH      DEFINED        1       36,663          122
VERIZON COMMUNICATIONS INC    COMMON 92343V104      749    24,144  SH      OTHER          1       20,300  3,844
VISA INC                      COMMON 92826C839      506     5,559  SH      DEFINED        1        5,559
VISA INC                      COMMON 92826C839       23       257  SH      OTHER          1          257
VIST FINANCIAL CORP           COMMON 524477106      820    91,400  SH      DEFINED                91,400     --    --







COLUMN  1                     COL 2  COL 3     COL 4    COLUMN 5           COL 6      COL 7    COLUMN 8
                              TITLE            MARKET                                          VOTING
                              OF               VALUE    SHS OR    SH/ PUT/ INVESTMENT OTHER    AUTHORITY
ISSUER                        CLASS  CUSIP     (X$1000) PRN AMT   PRN CALL DISCRETION MANAGERS SOLE      SHARED  NONE
----------------------------  ------ --------- -------- --------- --- ---- ---------- -------- --------- ------ -----
                                                                               
VIST FINANCIAL CORP           COMMON 918255100       96    10,655  SH      DEFINED        1       10,655
WAL MART STORES INC           COMMON 931142103      671    12,066  SH      DEFINED        1       10,010        2,056
WAL MART STORES INC           COMMON 931142103       42       764  SH      OTHER          1          704           60
WELLS FARGO & CO NEW          COMMON 949746101      708    22,743  SH      DEFINED        1       22,743
WELLS FARGO & CO NEW          COMMON 949746101      249     7,995  SH      OTHER          1        7,995
XCEL ENERGY INC               COMMON 98389B100      535    25,239  SH      DEFINED        1       25,239
XCEL ENERGY INC               COMMON 98389B100       39     1,817  SH      OTHER          1        1,817
ZIMMER HLDGS INC              COMMON 98956P102      566     9,556  SH      DEFINED        1        8,466        1,090
ZIMMER HLDGS INC              COMMON 98956P102       28       470  SH      OTHER          1          300    100    70

GRAND TOTALS                                     87,397 3,059,394