| Evan O. Williams | |
| Birth Date: | 26 September 1889 |
| Birth Place: | Bristol Township, Minnesota, U.S. |
| Death Place: | Des Moines, Iowa, U.S. |
| Player Sport1: | Football |
| Player Team2: | Carleton |
| Player Sport3: | Basketball |
| Player Years4: | c. 1908 |
| Player Team4: | Carleton |
| Player Sport5: | Baseball |
| Player Years6: | c. 1908 |
| Player Team6: | Carleton |
| Coach Sport1: | Football |
| Coach Years2: | 1915–? |
| Coach Team2: | Huron |
| Coach Years3: | 1919–1931 |
| Coach Team3: | South HS (MN) |
| Coach Years4: | 1932 |
| Coach Team4: | Drake |
| Coach Sport5: | Basketball |
| Coach Years6: | 1915–? |
| Coach Team6: | Huron |
| Coach Years7: | 1919–1932 |
| Coach Team7: | South HS (MN) |
| Coach Years8: | 1932–1943 |
| Coach Team8: | Drake |
| Admin Years1: | 1932–1940 |
| Admin Team1: | Drake |
| Overall Record: | 2–6–1 (college football, Drake only) 113–115 (college basketball, Drake only) |
Evan Owen "Bill" Williams (September 26, 1889 – December 21, 1946) was an American football and basketball coach. He was the 14th head football coach at the Drake University located in Des Moines, Iowa and he held that position for the 1932 season. His coaching record at Drake was 2–6–1.[1] Williams was also the head basketball coach at Drake from 1932 to 1943, compiling a record of 113–115. He was the athletic director at Drake from 1932 to 1940. Williams committed suicide by hanging himself in a Des Moines hotel on December 22, 1946.