| Full name: | Ernest James Unwin |
| Born: | 18th September 1912, Birdbrook, Essex, England |
| Died: | 23rd November 2003, Perth, Scotland |
| Batting: | Right-hand batsman |
| Bowling: | Right-arm fast-medium |
| Other Sports: | Rugby Union for England, British Lions, Rosslyn Park, Army, Combined Services, London Counties and Eastern Counties |
| Relations: | Brother: FS Unwin |
| Teams: | Essex (Main FC: 1932-1939); Suffolk (Minor Counties Championship: 1951-1956); All teams |
| External link: | Jim Unwin's Rugby Union international career and statistics |
| | Jim Unwin's Rugby Union British & Irish Lions career and statistics |
| Lists of matches and more detailed statistics |
