| Lyn Jaffray | |
| Birth Name: | John Lyndon Jaffray |
| Birth Date: | 17 April 1950 |
| Birth Place: | Dunedin, New Zealand |
| Position: | First five-eighth Second five-eighth |
| Height: | 1.760NaN0 |
| Weight: | 81kg (179lb) |
| Repyears1: | 1972–79 |
| Repcaps1: | 7 |
| Reppoints1: | 4 |
| Province1: | Otago |
| Province2: | South Canterbury |
| Provinceyears1: | 1970–78 |
| Provinceyears2: | 1979 |
| Provinceapps1: | 84 |
| Provinceapps2: | 13 |
| Provincepoints1: | 55 |
| Provincepoints2: | 4 |
| Relatives: | Merv Jaffray (brother) |
| School: | Kaikorai Valley High School |
John Lyndon Jaffray (born 17 April 1950) is a former New Zealand rugby union player. A first or second five-eighth, Jaffray represented Otago and South Canterbury at a provincial level, and was a member of the New Zealand national side, the All Blacks, between 1972 and 1979. He played 23 matches for the All Blacks including seven internationals.[1]