| Arthur N. Sager | |
| Birth Date: | 2 October 1871 |
| Birth Place: | Kenosha, Wisconsin, U.S. |
| Death Place: | Louisville, Kentucky, U.S. |
| Alma Mater: | DePauw (Law 1893) |
| Coach Years1: | 1892–1893 |
| Coach Team1: | DePauw |
| Coach Years2: | 1899 |
| Coach Team2: | Washington University |
| Overall Record: | 13–8 |
Arthur Noble Sager (October 2, 1871 – October 17, 1949) was an American lawyer and college football coach. He served as the head football coach at DePauw University in Greencastle, Indiana from 1892 to 1893, where he was a law student.[1] Sager moved to St. Louis, Missouri in 1896 to become a lawyer. There, he also served as the head football coach at Washington University in St. Louis in 1899.[2]