| Jack Rankin | |
| Birth Name: | John George Rankin |
| Birth Date: | 14 February 1914 |
| Birth Place: | Christchurch, New Zealand |
| Death Place: | Christchurch, New Zealand |
| Position: | Flanker |
| Height: | 1.80NaN0 |
| Weight: | 81kg (179lb) |
| Repyears1: | 1936–37 |
| Repcaps1: | 3 |
| Reppoints1: | 6 |
| Provinceyears1: | 1933–41 |
| Provinceyears2: | 1941 |
| Provinceapps1: | 41 |
| Provinceapps2: | 3 |
| School: | Christchurch Boys' High School |
John George Rankin (14 February 1914 – 8 December 1989) was a New Zealand rugby union player. A flanker, Rankin represented and, briefly, at a provincial level. He was a member of the New Zealand national side, the All Blacks, in 1936 and 1937. He played four matches for the All Blacks including three internationals.[1]
During World War II, Rankin served as an officer with the New Zealand forces, being commissioned as a second lieutenant in September 1941.[2] He was a Canterbury selector–coach from 1948 to 1954, and a South Island selector between 1955 and 1957.[1]