| John Harker | |
| Fullname: | John James Harker |
| Birth Date: | 10 October 1876[1] |
| Birth Place: | Hunwick, England |
| Position: | Inside forward |
| Years1: | 1898–1899 |
| Clubs1: | Thornaby Utopians |
| Years2: | 1899 |
| Clubs2: | Sunderland |
| Caps2: | 1 |
| Goals2: | 0 |
| Years3: | 1899–1??? |
| Clubs3: | Thornaby Utopians |
John James Harker (10 October 1876 – 1962) was an English professional footballer who played as an inside forward for Sunderland.[2]