| John Gallacher | |
| Birth Date: | 12 December 1951 |
| Birth Place: | Falkirk, Scotland |
| Position: | Central defender |
| Years1: | 1969–1970 |
| Years2: | 1970–1978 |
| Years3: | 1978–1982 |
| Clubs1: | Queen's Park |
| Clubs2: | Heart of Midlothian |
| Clubs3: | Dumbarton |
| Caps1: | 8 |
| Caps2: | 73 |
| Caps3: | 131 |
| Goals1: | 0 |
| Goals2: | 4 |
| Goals3: | 2 |
| Totalcaps: | 212 |
| Totalgoals: | 5 |
John Gallacher (born 12 December 1951) is a Scottish former footballer, who played for Queen's Park, Heart of Midlothian ("Hearts") and Dumbarton in the Scottish Football League. Gallacher was part of the Hearts team in the 1976 Scottish Cup Final, which they lost 3–1 to Rangers.