Leading Sires of 2009 Grade I Stakes Winners
(through 31 December 2009)
| Rank | Stallion | Sire | Location | SWs |
| 1 | A.P. INDY | SEATTLE SLEW | KY | 4 |
| DYNAFORMER | ROBERTO | KY | 4 | |
| MONTJEU | SADLER'S WELLS | IRE | 4 | |
| PIVOTAL | POLAR FALCON | ENG | 4 | |
| 5 | DANEHILL DANCER | DANEHILL | IRE | 3 |
| EMPIRE MAKER | UNBRIDLED | KY | 3 | |
| GIANT'S CAUSEWAY | STORM CAT | KY | 3 | |
| MEDAGLIA D'ORO | EL PRADO | KY | 3 | |
| MONSUN | KONIGSSTHUL | GER | 3 | |
| OASIS DREAM | GREEN DESERT | ENG | 3 | |
| SINGSPIEL | IN THE WINGS | ENG | 3 | |