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| 2008 Indianapolis 500 entry list | ||
| Car | Driver | Entrant |
| 2 | A.J. Foyt IV | Vision Racing |
| 3 | Helio Castroneves | Team Penske |
| 4 | Vitor Meira | Panther Racing |
| 5 | Oriol Servia* | KV Racing Technology |
| 6 | Ryan Briscoe | Team Penske |
| 7 | Danica Patrick | Andretti Green Racing |
| 8 | Will Power* | KV Racing Technology |
| 9 | Scott Dixon | Target Chip Ganassi Racing |
| 10 | Dan Wheldon | Target Chip Ganassi Racing |
| 11 | Tony Kanaan | Andretti Green Racing |
| 12 | Tomas Scheckter | Luczo Dragon Racing |
| 14 | Darren Manning | A.J. Foyt Enterprises |
| 15 | Buddy Rice | Dreyer & Reinbold Racing |
| 16 | Alex Lloyd* | Rahal Letterman Racing |
| 17 | Ryan Hunter-Reay* | Rahal Letterman Racing |
| 18 | Bruno Junqueira | Dale Coyne Racing |
| 19 | Mario Moraes* | Dale Coyne Racing |
| 20 | Ed Carpenter | Vision Racing |
| 22 | Davey Hamilton | Vision Racing |
| 23 | Milka Duno | Dreyer & Reinbold Racing |
| 24 | John Andretti | Roth Racing |
| 25 | Marty Roth | Roth Racing |
| 26 | Marco Andretti | Andretti Green Racing |
| 27 | Hideki Mutoh* | Andretti Green Racing |
| 33 | E.J. Viso* | HVM Racing |
| 34 | Jaime Camara* | Conquest Racing |
| 36 | Enrique Bernoldi* | Conquest Racing |
| 41 | Jeff Simmons | A.J. Foyt Enterprises |
| 44 | Max Papis | Sam Schmidt Motorsports |
| 67 | Sarah Fisher | Sarah Fisher Racing |
| 77 | TBA | Team Penske |
| 83 | TBA | Panther Racing |
| 88 | | American Dream Motorsports |
| 91 | Buddy Lazier | Hemelgarn Johnson |
| 96 | Mario Dominguez* | Pacific Coast Motorsports |
| 98 | | CURB/Agajanian/Beck Motorsports |
| 99 | Townsend Bell | Dreyer & Reinbold Racing |
| 02 | Justin Wilson* | Newman/Haas/Lanigan Racing |
| 06 | Graham Rahal* | Newman/Haas/Lanigan Racing |
| TBA | TBA | PDM Racing |
| Note: * denotes rookie | ||