| Harry Trainer | |
| Fullname: | Henry Trainer |
| Birth Date: | 1872 |
| Birth Place: | Wrexham, Wales |
| Death Date: | May 1924 (aged 51) |
| Death Place: | Wrexham, Wales |
| Position: | Centre forward |
| Years1: | 1890–1891 |
| Clubs1: | Wrexham Victoria |
| Years2: | 1891–1893 |
| Clubs2: | Wrexham Grosvenor |
| Years3: | 1893–1894 |
| Clubs3: | Westminster Rovers |
| Years4: | 1894–1895 |
| Clubs4: | Wrexham |
| Years5: | 1895–1897 |
| Clubs5: | Leicester Fosse |
| Caps5: | 31 |
| Goals5: | 12 |
| Years6: | 1897–1899 |
| Clubs6: | Sheppey United |
| Years7: | 1899–1900 |
| Clubs7: | Wrexham |
| Nationalyears1: | 1895 |
| Nationalteam1: | Wales |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 2 |
Harry Trainer (1872 – May 1924) was a Welsh international footballer. He was part of the Wales national football team, playing three matches and scoring two goals. He played his first match on 16 March 1895 against Ireland and his last match on 23 March 1895 against Scotland.[1] At club level, he played for Leicester Fosse and was topscorer of the team of the 1895–96 season with 14 goals.
In January 1901, Trainer was sentenced to nine months imprisonment with hard labour for breaking and entering, and theft of jewellery.[2]