| 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 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]