| Willis Barnes | |
| Birth Date: | 22 October 1900 |
| Coach Sport1: | Football |
| Coach Years2: | 1931 |
| Coach Team2: | Arizona State (line) |
| Coach Years3: | 1937–1941 |
| Coach Team3: | New Mexico (assistant) |
| Coach Years4: | 1942–1946 |
| Coach Team4: | New Mexico |
| Coach Years5: | 1947 |
| Coach Team5: | New Mexico (assistant) |
| Coach Years6: | 1950–1951 |
| Coach Team6: | New Mexico (assistant) |
| Coach Years7: | 1954–1955 |
| Coach Team7: | New Mexico (assistant) |
| Coach Sport8: | Basketball |
| Coach Years9: | 1941–1943 |
| Coach Team9: | New Mexico |
| Overall Record: | 19–20–5 (football) 12–30 (basketball) |
| Bowl Record: | 1–1–1 |
Willis Lee Barnes (October 22, 1900 – March 22, 1976) was an American football, basketball, track and field, and boxing coach. He served as the head football coach at the University of New Mexico from 1942 to 1946, compiling a record of 45–35–10. Barnes was also the head basketball coach at New Mexico from 1941 to 1943, tallying a mark of 12–30. Barnes came to the University of New Mexico in 1937 as an assistant football coach.[1]