| John Thomas | |
| Fullname: | John William Thomas |
| Birth Place: | Wales |
| Death Date: | March 1920 (aged 54) |
| Death Place: | Gainsborough, England[1] |
| Position: | Outside Right |
| Years1: | 1889–1890 |
| Clubs1: | Gainsborough Trinity |
| Years2: | 1891 |
| Clubs2: | Sheffield United |
| Caps2: | 1 |
| Goals2: | 1 |
| Years3: | 1891–1893 |
| Clubs3: | Gainsborough Trinity |
John William Thomas (date of birth unknown) was a Welsh footballer who played as an outside right for Sheffield United and Gainsborough Trinity.
The Welshman (as he was referred to in the local press)[2] was signed by Sheffield United on 5 May 1891 from Gainsborough Trinity. Gainsborough had just won the Midland Counties League and Thomas was signed to bring added potency to United's attack. Thomas started the first seven of United's games in the 1891–92 season including scoring in their first ever game in the Northern League against Sunderland Albion.[3] Despite this he then lost his place to a young Ernest Needham and, unable to reclaim his position in the side, Thomas returned to Gainsborough Trinity in December 1891.