| Jack Grainger | |
| Fullname: | John Grainger |
| Birth Date: | 17 July 1912 |
| Birth Place: | Royston, England |
| Death Place: | Southport, England |
| Height: | 5 ft 7+1/2 in[1] |
| Position: | Full back |
| Clubs1: | Frickley Colliery |
| Clubs2: | Royston Athletic |
| Years3: | 1932–1933 |
| Clubs3: | Barnsley |
| Years4: | 1933–1946 |
| Clubs4: | Southport |
| Clubs5: | → Liverpool (guest) |
| Clubs6: | Prescot Cables |
| Clubs7: | Hyde United |
| Clubs8: | Clitheroe |
| Clubs9: | Bangor City |
John Grainger (17 July 1912 – 18 January 1976) was an English professional footballer who played as a full back.
Born in Royston, Grainger played for Frickley Colliery, Royston Athletic, Barnsley, Southport, Prescot Cables, Hyde United, Clitheroe and Bangor City, as well as playing as a wartime guest for Liverpool.[2] [3] [4]
His brother Dennis Grainger and cousins Jack and Colin were also professional footballers.[5]