| John Walker | |
| Position: | Defensive specialist |
| Birth Date: | 25 April 1983 |
| Birth Place: | Wahiawā, Hawai'i |
| Height Ft: | 6 |
| Height In: | 1 |
| Weight Lbs: | 200 |
| High School: | Los Angeles (CA) Birmingham |
| College: | USC |
| Undraftedyear: | 2006 |
| Pastteams: | |
| Aflstatlabel1: | Tackles |
| Aflstatvalue1: | 70 |
| Aflstatlabel2: | Interceptions |
| Aflstatvalue2: | 8 |
| Aflstatlabel3: | Int. return yards |
| Aflstatvalue3: | 165 |
| Aflstatlabel4: | FF/FR |
| Aflstatvalue4: | 7/3 |
| Aflstatlabel5: | Passes broken up |
| Aflstatvalue5: | 15 |
| Afl: | 10788 |
John Walker (born April 25, 1983) is a former arena football defensive back.
Walker attended Birmingham High School in Van Nuys, California and was a letterman in football and track.
Walker played college football for the University of Southern California.
Walker was signed as a free agent for the National Football League's Houston Texans practice squad in 2006. On February 4, 2008, Walker signed with the Arena Football League's New York Dragons. On October 6, 2010, Walker signed with the Jacksonville Sharks.
As a child, Walker was an actor and had roles in 7th Heaven and ER.