| Number: | 7, 11 |
| Position: | Halfback |
| Birth Date: | 3 October 1919 |
| Birth Place: | Bloomfield, New Jersey, U.S. |
| Height Ft: | 5 |
| Height In: | 10 |
| Weight Lbs: | 173 |
| High School: | Bloomfield |
| College: | Colgate |
| Draftyear: | 1942 |
| Draftround: | 11 |
| Draftpick: | 100 |
| Pastteams: |
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| Highlights: |
|
| Statlabel1: | Games played |
| Statvalue1: | 9 |
| Statlabel2: | Games started |
| Statvalue2: | 3 |
| Statlabel3: | Rushing attempts-yards |
| Statvalue3: | 25–54 |
| Statlabel4: | Receptions-yards |
| Statvalue4: | 6–145 |
| Statlabel5: | Touchdowns |
| Statvalue5: | 4 |
| Pfr: | GeyeBi20 |
William Herbert Geyer, Jr. (October 3, 1919 – June 4, 2004) was a professional American football halfback in the National Football League (NFL). He played three seasons for the Chicago Bears (1942–1943, 1946).[1]