| Jack Watherston | |
| Full Name: | Jack Greenshields Watherston |
| Birth Date: | 24 August 1909 |
| Birth Place: | Edinburgh, Scotland |
| Death Place: | Roxburghshire, Scotland |
| School: | Sedbergh School |
| University: | Corpus Christi College |
| Position: | Flanker |
| Repyears1: | 1934 |
| Repcaps1: | 2 |
| Reppoints1: | 0 |
Jack Greenshields Watherston (24 August 1909 — 17 November 1990) was a Scottish international rugby union player.
Born in Edinburgh, Watherston was educated at Sedbergh School and Corpus Christi College, Cambridge.[1]
A flanker, Watherston gained blues in varsity rugby at Cambridge University. He played his rugby in Scotland for Edinburgh Wanderers and Jedburgh. In 1934, Watherston was capped twice for Scotland during their Home Nations campaign, against Ireland at Murrayfield and England at Twickenham.[2]
Watherson's daughter Diana was married to British peer Hugh Courtenay, 18th Earl of Devon. His grandson Charles Courtenay, 19th Earl of Devon, is a Member of the House of Lords.[3]