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, 2013

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       Guardian Capital Advisors LP
Address    CCW, Suite 3100,  199 Bay Street
           PO Box 201
           Toronto, Ontario Canada M5L 1E8

Form 13F File Number:    028-14315

The institutional investment manager filing this report and the person
by whom it is signed hereby represent that the person signing this report
is authorized to submit it, that all information contained herein is
true, correct and complete, and that 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    Matthew D. Turner
Title   Chief Compliance Officer
Phone   416-947-3708

Signature, Place, and Date of Signing:

By /s/ Matthew D. Turner       Toronto, Ontario CANADA       May 13, 2013
------------------------       -----------------------       ------------
[Signature]                    [City, State]                 [Date]

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:           0
Form 13F Information Table Entry Total:      164
Form 13F Information Table Value Total:      423,956   (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.

NONE



                              FORM 13F INFORMATION TABLE



             COL 1                 COL 2          COL 3     COL 4          COL 5       COL 6    COL 7                COL 8
                                                              US $    SHARES
                                                             VALUE        OR SH/ PUT/ INVSTMT   OTHER          VOTING AUTHORITY
NAME OF ISSUER                 TITLE OF CLASS   CUSIP     (x$1000)   PRN AMT PRN CALL DSCRETN  MANAGERS     SOLE    SHARED    NONE
------------------------------ ---------------- --------- -------- --------- --- ---- ------- ---------- --------- -------- --------
                                                                                                
3M CO                          COM              88579Y101     4905     44760 SH       SOLE                   44760      0        0
ABB LTD                        SPONSORED ADR    000375204     3828    162914 SH       SOLE                  162914      0        0
ABBOTT LABS                    COM              002824100     2424     65175 SH       SOLE                   65175      0        0
ABBVIE INC                     COM              00287Y109     2575     61425 SH       SOLE                   61425      0        0
AEGON N V                      NY REGISTRY SH   007924103     1411    221586 SH       SOLE                  221586      0        0
AETNA INC NEW                  COM              00817Y108      352      6300 SH       SOLE                    6300      0        0
AGRIUM INC                     COM              008916108     2883     29414 SH       SOLE                   29414      0        0
ALCOA INC                      COM              013817101      149     17416 SH       SOLE                   17416      0        0
ALTRIA GROUP INC               COM              02209S103      455     12700 SH       SOLE                   12700      0        0
AMERICAN ELEC PWR INC          COM              025537101     3233     64970 SH       SOLE                   64970      0        0
AMERICAN EXPRESS CO            COM              025816109      543      7785 SH       SOLE                    7785      0        0
AMERICAN INTL GROUP INC        COM NEW          026874784      417     10400 SH       SOLE                   10400      0        0
APPLE INC                      COM              037833100     2171      4904 SH       SOLE                    4904      0        0
ARCELORMITTAL SA LUXEMBOURG    NY REGISTRY SH   03938L104     1256     99560 SH       SOLE                   99560      0        0
ASTRAZENECA PLC                SPONSORED ADR    046353108     2399     46290 SH       SOLE                   46290      0        0
AT&T INC                       COM              00206R102     5389    139391 SH       SOLE                  139391      0        0
ATLANTIC PWR CORP              COM NEW          04878Q863      860    166961 SH       SOLE                  166961      0        0
AVALON RARE METALS INC         COM              053470100      111    103000 SH       SOLE                  103000      0        0
BANCO SANTANDER SA             ADR              05964H105     2924    411229 SH       SOLE                  411229      0        0
BANK MONTREAL QUE              COM              063671101    14843    227197 SH       SOLE                  227197      0        0
BANK NOVA SCOTIA HALIFAX       COM              064149107    18171    302823 SH       SOLE                  302823      0        0
BARRICK GOLD CORP              COM              067901108      702     24061 SH       SOLE                   24061      0        0
BAYTEX ENERGY CORP             COM              07317Q105     1924     44575 SH       SOLE                   44575      0        0
BCE INC                        COM NEW          05534B760    16005    334369 SH       SOLE                  334369      0        0
BHP BILLITON LTD               SPONSORED ADR    088606108     2280     32412 SH       SOLE                   32412      0        0
BLACKROCK INC                  COM              09247X101     1184      4465 SH       SOLE                    4465      0        0
BOEING CO                      COM              097023105      498      5750 SH       SOLE                    5750      0        0
BRIGUS GOLD CORP               COM              109490102        8     10000 SH       SOLE                   10000      0        0
BRISTOL MYERS SQUIBB CO        COM              110122108      777     18250 SH       SOLE                   18250      0        0
BRITISH AMERN TOB PLC          SPONSORED ADR    110448107     2420     21690 SH       SOLE                   21690      0        0
BROOKFIELD ASSET MGMT INC      CL A LTD VT SH   112585104     5991    157983 SH       SOLE                  157983      0        0
BROOKFIELD INFRAST PARTNERS    LP INT UNIT      G16252101     1162     29675 SH       SOLE                   29675      0        0
BROOKFIELD OFFICE PPTYS INC    COM              112900105      903     51400 SH       SOLE                   51400      0        0
CANADIAN NAT RES LTD           COM              136385101     5786    174775 SH       SOLE                  174775      0        0
CANADIAN NATL RY CO            COM              136375102     7934     77789 SH       SOLE                   77789      0        0
CAPITAL ONE FINL CORP          COM              14040H105      255      4535 SH       SOLE                    4535      0        0
CATERPILLAR INC DEL            COM              149123101     2431     27795 SH       SOLE                   27795      0        0
CDN IMPERIAL BK OF COMMERCE    COM              136069101    12132    148300 SH       SOLE                  148300      0        0
CELESTICA INC                  SUB VTG SHS      15101Q108      418     50529 SH       SOLE                   50529      0        0
CENOVUS ENERGY INC             COM              15135U109     4382    135464 SH       SOLE                  135464      0        0
CF INDS HLDGS INC              COM              125269100      502      2625 SH       SOLE                    2625      0        0
CHEVRON CORP NEW               COM              166764100     4465     36441 SH       SOLE                   36441      0        0
CHINA MOBILE LIMITED           SPONSORED ADR    16941M109      344      6250 SH       SOLE                    6250      0        0
CISCO SYS INC                  COM              17275R102      671     30700 SH       SOLE                   30700      0        0
CNH GLOBAL N V                 SHS NEW          N20935206      403      9550 SH       SOLE                    9550      0        0
COMCAST CORP NEW               CL A             20030N101      320      7375 SH       SOLE                    7375      0        0
CONOCOPHILLIPS                 COM              20825C104     5006     81016 SH       SOLE                   81016      0        0
CORNING INC                    COM              219350105      829     60425 SH       SOLE                   60425      0        0
CREDIT SUISSE GROUP            SPONSORED ADR    225401108     1313     47720 SH       SOLE                   47720      0        0
CUMMINS INC                    COM              231021106      466      4050 SH       SOLE                    4050      0        0
CVS CAREMARK CORPORATION       COM              126650100     2884     50725 SH       SOLE                   50725      0        0
DEERE & CO                     COM              244199105      443      5135 SH       SOLE                    5135      0        0
DEUTSCHE BANK AG               NAMEN AKT        D18190898     1075     26175 SH       SOLE                   26175      0        0
DOW CHEM CO                    COM              260543103      456     14300 SH       SOLE                   14300      0        0
DTE ENERGY CO                  COM              233331107      254      3600 SH       SOLE                    3600      0        0
DU PONT E I DE NEMOURS & CO    COM              263534109      884     17514 SH       SOLE                   17514      0        0
DUKE ENERGY CORP NEW           COM NEW          26441C204     6939     92842 SH       SOLE                   92842      0        0
EATON CORP PLC                 SHS              G29183103      448      7135 SH       SOLE                    7135      0        0
EMERSON ELEC CO                COM              291011104     2993     53035 SH       SOLE                   53035      0        0
ENBRIDGE INC                   COM              29250N105     8960    184612 SH       SOLE                  184612      0        0
ENCANA CORP                    COM              292505104     2830    143246 SH       SOLE                  143246      0        0
ENERPLUS CORP                  COM              292766102      642     42725 SH       SOLE                   42725      0        0
ETABLISSEMENTS DELHAIZE FRER   SPONSORED ADR    29759W101     2015     35545 SH       SOLE                   35545      0        0
FIRSTSERVICE CORP              SDCV   6.500%12/ 33761NAA7       19     15000 SH       SOLE                   15000      0        0
FORD MTR CO DEL                COM PAR $0.01    345370860      712     53172 SH       SOLE                   53172      0        0
FRANCE TELECOM                 SPONSORED ADR    35177Q105     1103    104975 SH       SOLE                  104975      0        0
FRANKLIN RES INC               COM              354613101     1025      6605 SH       SOLE                    6605      0        0
FREEPORT-MCMORAN COPPER & GO   COM              35671D857     2830     86079 SH       SOLE                   86079      0        0
GENERAL ELECTRIC CO            COM              369604103      381     16000 SH       SOLE                   16000      0        0
GENERAL GROWTH PPTYS INC NEW   COM              370023103      332     16000 SH       SOLE                   16000      0        0
GLAXOSMITHKLINE PLC            SPONSORED ADR    37733W105     2864     59233 SH       SOLE                   59233      0        0
GOLDCORP INC NEW               COM              380956409      571     17123 SH       SOLE                   17123      0        0
GOODYEAR TIRE & RUBR CO        COM              382550101      591     46950 SH       SOLE                   46950      0        0
GOOGLE INC                     CL A             38259P508      925      1105 SH       SOLE                    1105      0        0
GROUPE CGI INC                 CL A SUB VTG     39945C109     3624    133897 SH       SOLE                  133897      0        0
HARTFORD FINL SVCS GROUP INC   COM              416515104      425     16150 SH       SOLE                   16150      0        0
HECLA MNG CO                   COM              422704106       80     20700 SH       SOLE                   20700      0        0
HOME DEPOT INC                 COM              437076102      828     11325 SH       SOLE                   11325      0        0
HSBC HLDGS PLC                 SPON ADR NEW     404280406     1216     21975 SH       SOLE                   21975      0        0
IAMGOLD CORP                   COM              450913108      684     97875 SH       SOLE                   97875      0        0
IMAX CORP                      COM              45245E109      408     15000 SH       SOLE                   15000      0        0
IMPERIAL OIL LTD               COM NEW          453038408     1951     46434 SH       SOLE                   46434      0        0
INTEL CORP                     COM              458140100     3892    176184 SH       SOLE                  176184      0        0
INTERNATIONAL BUSINESS MACHS   COM              459200101     3998     18172 SH       SOLE                   18172      0        0
INTL PAPER CO                  COM              460146103      234      4720 SH       SOLE                    4720      0        0
ISHARES TR                     MSCI EAFE INDEX  464287465      293      4866 SH       SOLE                    4866      0        0
ISHARES TR                     HIGH YLD CORP    464288513      885      9200 SH       SOLE                    9200      0        0
ISHARES TR                     S&P GBL FIN      464287333      517     10500 SH       SOLE                   10500      0        0
ISHARES TR                     FTSE CHINA25 IDX 464287184      480     12810 SH       SOLE                   12810      0        0
ISHARES TR                     S&P500 GRW       464287309      624      7350 SH       SOLE                    7350      0        0
JOHNSON & JOHNSON              COM              478160104     5979     70315 SH       SOLE                   70315      0        0
JOHNSON CTLS INC               COM              478366107     2902     82405 SH       SOLE                   82405      0        0
JPMORGAN CHASE & CO            COM              46625H100     5748    115762 SH       SOLE                  115762      0        0
KINROSS GOLD CORP              COM NO PAR       496902404       87     11301 SH       SOLE                   11301      0        0
LENNAR CORP                    CL A             526057104     1023     24825 SH       SOLE                   24825      0        0
LILLY ELI & CO                 COM              532457108     1493     25675 SH       SOLE                   25675      0        0
MAGNA INTL INC                 COM              559222401     1460     24125 SH       SOLE                   24125      0        0
MANULIFE FINL CORP             COM              56501R106     1284     83956 SH       SOLE                   83956      0        0
MCDONALDS CORP                 COM              580135101     3708     35915 SH       SOLE                   35915      0        0
MCKESSON CORP                  COM              58155Q103      326      2925 SH       SOLE                    2925      0        0
MERCK & CO INC NEW             COM              58933Y105      296      6425 SH       SOLE                    6425      0        0
METLIFE INC                    COM              59156R108      487     12395 SH       SOLE                   12395      0        0
MICROSOFT CORP                 COM              594918104     4454    150176 SH       SOLE                  150176      0        0
MORGAN STANLEY                 COM NEW          617446448      765     34190 SH       SOLE                   34190      0        0
MOSAIC CO NEW                  COM              61945C103      386      6450 SH       SOLE                    6450      0        0
NATIONAL GRID PLC              SPON ADR NEW     636274300     6442    106385 SH       SOLE                  106385      0        0
NEWMONT MINING CORP            COM              651639106      405      9885 SH       SOLE                    9885      0        0
NIKE INC                       CL B             654106103     1702     28035 SH       SOLE                   28035      0        0
NOVARTIS A G                   SPONSORED ADR    66987V109     1674     22790 SH       SOLE                   22790      0        0
ORACLE CORP                    COM              68389X105     3332     98817 SH       SOLE                   98817      0        0
PEMBINA PIPELINE CORP          COM              706327103     1570     48473 SH       SOLE                   48473      0        0
PENGROWTH ENERGY CORP          COM              70706P104      448     85644 SH       SOLE                   85644      0        0
PENN WEST PETE LTD NEW         COM              707887105      244     22656 SH       SOLE                   22656      0        0
PEPSICO INC                    COM              713448108     5610     68340 SH       SOLE                   68340      0        0
PFIZER INC                     COM              717081103     3775    125428 SH       SOLE                  125428      0        0
PHILIP MORRIS INTL INC         COM              718172109     1759     18200 SH       SOLE                   18200      0        0
POTASH CORP SASK INC           COM              73755L107     2343     57818 SH       SOLE                   57818      0        0
PRECISION DRILLING CORP        COM 2010         74022D308     2646    284764 SH       SOLE                  284764      0        0
PROCTER & GAMBLE CO            COM              742718109      277      3438 SH       SOLE                    3438      0        0
PROGRESSIVE WASTE SOLUTIONS    COM              74339G101     1793     83665 SH       SOLE                   83665      0        0
QUALCOMM INC                   COM              747525103     2686     39395 SH       SOLE                   39395      0        0
RESEARCH IN MOTION LTD         COM              760975102      210     13465 SH       SOLE                   13465      0        0
RIO TINTO PLC                  SPONSORED ADR    767204100      477     10040 SH       SOLE                   10040      0        0
ROGERS COMMUNICATIONS INC      CL B             775109200     5702    109036 SH       SOLE                  109036      0        0
ROYAL BK CDA MONTREAL QUE      COM              780087102    21797    345022 SH       SOLE                  345022      0        0
ROYAL DUTCH SHELL PLC          SPONS ADR A      780259206     4223     63070 SH       SOLE                   63070      0        0
SANOFI                         SPONSORED ADR    80105N105     4875     91184 SH       SOLE                   91184      0        0
SAP AG                         SPON ADR         803054204     1310     15730 SH       SOLE                   15730      0        0
SCHLUMBERGER LTD               COM              806857108      212      2750 SH       SOLE                    2750      0        0
SHAW COMMUNICATIONS INC        CL B CONV        82028K200      367     14400 SH       SOLE                   14400      0        0
SIEMENS A G                    SPONSORED ADR    826197501     2876     25430 SH       SOLE                   25430      0        0
SPDR S&P 500 ETF TR            TR UNIT          78462F103     3087     19129 SH       SOLE                   19129      0        0
SUN LIFE FINL INC              COM              866796105     7300    256360 SH       SOLE                  256360      0        0
SUNCOR ENERGY INC NEW          COM              867224107     5264    166191 SH       SOLE                  166191      0        0
SWISS HELVETIA FD INC          COM              870875101      176     14091 SH       SOLE                   14091      0        0
TAIWAN SEMICONDUCTOR MFG LTD   SPONSORED ADR    874039100     2821    160154 SH       SOLE                  160154      0        0
TALISMAN ENERGY INC            COM              87425E103      337     26705 SH       SOLE                   26705      0        0
TASEKO MINES LTD               COM              876511106       29     10700 SH       SOLE                   10700      0        0
TECK RESOURCES LTD             CL B             878742204     4716    166903 SH       SOLE                  166903      0        0
TELUS CORP                     COM              87971M103     5094     71542 SH       SOLE                   71542      0        0
TEMPLETON RUS AND EAST EUR F   COM              88022F105      173     11500 SH       SOLE                   11500      0        0
TEVA PHARMACEUTICAL INDS LTD   ADR              881624209     1339     32935 SH       SOLE                   32935      0        0
THOMSON REUTERS CORP           COM              884903105     2899     86920 SH       SOLE                   86920      0        0
TIM HORTONS INC                COM              88706M103      471      8480 SH       SOLE                    8480      0        0
TORONTO DOMINION BK ONT        COM NEW          891160509    23078    269081 SH       SOLE                  269081      0        0
TOTAL S A                      SPONSORED ADR    89151E109      262      5200 SH       SOLE                    5200      0        0
TRANSALTA CORP                 COM              89346D107     1001     66177 SH       SOLE                   66177      0        0
TRANSCANADA CORP               COM              89353D107     9895    196249 SH       SOLE                  196249      0        0
TRAVELERS COMPANIES INC        COM              89417E109     3221     37097 SH       SOLE                   37097      0        0
UNILEVER N V                   N Y SHS NEW      904784709     3622     84645 SH       SOLE                   84645      0        0
UNILEVER PLC                   SPON ADR NEW     904767704     1626     37030 SH       SOLE                   37030      0        0
UNION PAC CORP                 COM              907818108      290      2000 SH       SOLE                    2000      0        0
UNITEDHEALTH GROUP INC         COM              91324P102     1563     24570 SH       SOLE                   24570      0        0
V F CORP                       COM              918204108      259      1500 SH       SOLE                    1500      0        0
VALE S A                       ADR              91912E105      450     26375 SH       SOLE                   26375      0        0
VANGUARD INDEX FDS             REIT ETF         922908553      216      3000 SH       SOLE                    3000      0        0
VANGUARD INTL EQUITY INDEX F   FTSE EMR MKT ETF 922042858     1468     33500 SH       SOLE                   33500      0        0
VERIZON COMMUNICATIONS INC     COM              92343V104     2788     54928 SH       SOLE                   54928      0        0
VERMILION ENERGY INC           COM              923725105     1365     25538 SH       SOLE                   25538      0        0
VODAFONE GROUP PLC NEW         SPONS ADR NEW    92857W209     4115    135887 SH       SOLE                  135887      0        0
WAL-MART STORES INC            COM              931142103     2663     34035 SH       SOLE                   34035      0        0
WELLPOINT INC                  COM              94973V107     1742     24705 SH       SOLE                   24705      0        0
WELLS FARGO & CO NEW           COM              949746101     5664    149357 SH       SOLE                  149357      0        0
WHOLE FOODS MKT INC            COM              966837106      684      7850 SH       SOLE                    7850      0        0