| John Boag | |
| Birth Date: | 1965 2, df=y |
| Birth Place: | Port Glasgow, Scotland |
| Death Place: | Port Glasgow, Scotland |
| Position: | Central Defender |
| Youthclubs1: | Port Glasgow Rangers |
| Youthclubs2: | Aberdeen |
| Years1: | 1984–1993 |
| Years2: | 1993 |
| Clubs1: | Morton |
| Clubs2: | Dumbarton |
| Caps1: | 178 |
| Caps2: | 7 |
| Goals1: | 2 |
| Goals2: | 1 |
John Boag (14 February 1965 – 2006) was a Scottish footballer who was captain of Greenock Morton.
Boag joined Morton from Aberdeen in 1984[1] and played for the club for nine years, until 1993. He played for Dumbarton in 1993 prior to retirement.
Boag was found dead in his flat in Port Glasgow in July 2006.[1]