| Eldon Mason | |
| Birth Date: | 21 June 1902 |
| Birth Place: | Minneapolis, Minnesota, U.S. |
| Death Place: | St. Louis, Missouri, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1919–1920 |
| Player Team2: | New Hampshire |
| Player Years3: | 1925–1927 |
| Player Team3: | Minnesota |
| Coach Sport1: | Football |
| Coach Years2: | 1928–1930 |
| Coach Team2: | Bemidji State |
| Coach Sport3: | Basketball |
| Coach Years4: | 1928–1931 |
| Coach Team4: | Bemidji State |
| Admin Years1: | 1928–1931 |
| Admin Team1: | Bemidji State |
| Overall Record: | 8–9–3 (football) 17–17 (basketball) |
Eldon Wellington Heywood Mason (June 21, 1902 – October 2, 1990) was an American college football player and coach. He served as the head football coach at Bemidji State Normal School—now known as Bemidji State University—in Bemidji, Minnesota from 1928 to 1930, compiling a record of 8–9–3.[1] Mason was also the head basketball coach at Bemidji State from 1928 to 1931, tallying a mark of 17–17. Mason died of cancer on October 8, 1990, in St. Louis, Missouri.[2]