| John S. Davis | |
| Birth Date: | 21 October 1898 |
| Birth Place: | Williamsburg, Kansas, U.S. |
| Death Place: | Fort Collins, Colorado, U.S. |
| Alma Mater: | Ottawa University (1922)[1] |
| Coach Sport1: | Football |
| Coach Years2: | 1930 |
| Coach Team2: | Ottawa |
| Coach Sport3: | Basketball |
| Coach Years4: | 1927–1931 |
| Coach Team4: | Ottawa |
| Coach Years5: | 1931–1937 |
| Coach Team5: | Colorado Teachers / Colorado State–Greeley |
| Coach Years6: | 1937–1945 |
| Coach Team6: | Colorado A&M |
| Admin Years1: | 1927–1931 |
| Admin Team1: | Ottawa |
| Overall Record: | 1–6 (football) 152–162 (basketball) |
John Solomon "Sap" Davis (October 21, 1898 – February 16, 1985) was an American football and basketball coach and college athletics administrator. He was the 12th head football coach at Ottawa University in Ottawa, Kansas, serving for the 1930 season and compiling a record of 1–6.[2] Davis was also the athletic director and head basketball coach at Ottawa from 1927 to 1931. He moved to the State Normal School of Colorado—now known as the University of Northern Colorado—in 1931 to replace George E. Cooper as head basketball coach.[3] In 1937, Davis was hired as the head basketball coach at Colorado State College of Agriculture and Mechanic Arts—now known as Colorado State University.[4] [5]