| Position: | Fullback |
| Birth Date: | 7 April 1894 |
| Birth Place: | Chicago, U.S. |
| Death Place: | Sister Lakes, Michigan, U.S. |
| College: | Northwestern |
| Teams: |
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| Highlights: | |
| Statlabel1: | Games played |
| Statvalue1: | 71 |
| Statlabel2: | Games started |
| Statvalue2: | 58 |
| Statlabel3: | Touchdowns |
| Statvalue3: | 9 |
| Pfr: | K/KoehBo20 |
Robert Adam Charles Koehler (April 7, 1894 – July 1, 1949) was an American football player who played fullback for seven seasons for the Decatur Staleys and the Chicago Cardinals of the National Football League (NFL).[1]