| William Namack | |
| Birth Date: | 8 March 1876 |
| Birth Place: | Phelps, New York, U.S. |
| Death Place: | Springfield, Massachusetts, U.S. |
| Alma Mater: | Cornell[1] |
| Player Years1: | 1900 |
| Player Team1: | Cornell |
| Coach Years1: | 1901 |
| Coach Team1: | Washington Agricultural |
| Overall Record: | 4–1 |
William Henry Namack (March 8, 1876 – September 24, 1933)[2] was an American college football player and coach. He served as the head football coach at Washington Agricultural College and School of Science—now Washington State University—for one season in 1901, compiling a record of 4–1. Namack died on September 24, 1933, at Springfield Hospital in Springfield, Massachusetts.[3]