| John Keith | |
| Position: | Safety |
| Number: | 28 |
| Birth Date: | 4 February 1977 |
| Birth Place: | Newnan, Georgia, U.S. |
| Draftyear: | 2000 |
| Draftround: | 4 |
| Draftpick: | 108 |
| High School: | Sharpsburg (GA) East Coweta |
| College: | Furman (1995–1999) |
| Pastteams: | |
| Statlabel1: | Tackles |
| Statvalue1: | 57 |
| Statlabel2: | Sacks |
| Statvalue2: | 1 |
| Statlabel3: | Interceptions |
| Statvalue3: | 1 |
| Pfr: | KeitJo20 |
John Martin Keith (born February 4, 1977) is an American former professional football player who played safety for four seasons for the San Francisco 49ers in the National Football League (NFL).[1] He was selected in the fourth round of the 2000 NFL draft.[2]