| Ken Petersen | |
| Number: | 66 |
| Position: | Guard |
| Birth Date: | 26 March 1939 |
| Birth Place: | Logan, Utah, U.S. |
| Height Ft: | 6 |
| Height In: | 2 |
| Weight Lbs: | 235 |
| High School: | South (Salt Lake City, Utah) |
| College: | Utah |
| Draftyear: | 1961 |
| Draftround: | 14 |
| Draftpick: | 183 |
| Afldraftyear: | 1961 |
| Afldraftround: | 10 |
| Afldraftpick: | 74 |
| Pastteams: | |
| Statlabel1: | Games played |
| Statvalue1: | 12 |
| Pfr: | P/PeteKe20 |
Thornton Kenneth Petersen (born March 26, 1939) is a former American football player who played with the Minnesota Vikings. He played college football at the University of Utah.[1]