| John Sinclair | |
| Fullname: | John Sinclair |
| Birth Date: | 29 June 1948 |
| Originalteam: | Ballarat |
| Height: | 183 cm |
| Weight: | 81 kg |
| Position: | Half-back flank |
| Guernsey: | 14 |
| Statsend: | 1969 |
| Years1: | 1968–69 |
| Games Goals1: | 2 (0) |
John Sinclair (born 29 June 1948) is a former Australian rules footballer who played with Essendon in the Victorian Football League (VFL).[1] He was a member of Essendon's reserves premiership team in 1968 and played two senior VFL games in 1969.