| 1966 Grand National Race Winners | ||
| Race # | Location | Winner |
| 1 | Augusta GA | Richard Petty |
| 2 | Riverside CA | Dan Gurney |
| 3 | Daytona Beach FL | Paul Goldsmith |
| 4 | Daytona Beach FL | Earl Balmer |
| 5 | Daytona 500 | Richard Petty |
| 6 | Rockingham NC | Paul Goldsmith |
| 7 | Bristol TN | Dick Hutcherson |
| 8 | Hampton GA | Jim Hurtubise |
| 9 | Hickory NC | David Pearson |
| 10 | Columbia SC | David Pearson |
| 11 | Greenville SC | David Pearson |
| 12 | Winston-Salem NC | David Pearson |
| 13 | N Wilkesboro NC | Jim Paschal |
| 14 | Martinsville VA | Jim Paschal |
| 15 | Darlington SC | Richard Petty |
| 16 | Hampton VA | Richard Petty |
| 17 | Macon GA | Richard Petty |
| 18 | Monroe NC | Darel Deringer |
| 19 | Richmond VA | David Pearson |
| 20 | Concord NC | Marvin Panch |
| 21 | Moyock NC | David Pearson |
| 22 | Ashville NC | David Pearson |
| 23 | Spartanburg SC | Elmo Langley |
| 24 | Maryville TN | David Pearson |
| 25 | Weaverville NC | Richard Petty |
| 26 | Beltsville MD | Tiny Lund |
| 27 | Greenville SC | David Pearson |
| 28 | Daytona Beach FL | Sam McQuagg |
| 29 | Manassas VA | Elmo Langley |
| 30 | Bridgehampton NY | David Pearson |
| 31 | Oxford ME | Bobby Allison |
| 32 | Fonda NY | David Pearson |
| 33 | Islip NY | Bobby Allison |
| 34 | Bristol TN | Paul Goldsmith |
| 35 | Maryville TN | Paul Lewis |
| 36 | Nashville TN | Richard Petty |
| 37 | Hampton GA | Richard Petty |
| 38 | Columbia SC | David Pearson |
| 39 | Weaverville NC | Darel Deringer |
| 40 | Beltsville MD | Bobby Allison |
| 41 | Winston-Salem NC | David Pearson |
| 42 | Darlington SC | Darel Deringer |
| 43 | Hickory NC | David Pearson |
| 44 | Richmond VA | David Pearson |
| 45 | Hillsborough NC | Dick Hutcherson |
| 46 | Martinsville VA | Fred Lorenzen |
| 47 | N Wilkesboro NC | Dick Hutcherson |
| 48 | Concord NC | LeeRoy Yarbrough |
| 49 | Rockingham NC | Fred Lorenzen |