| William W. Potter | |
| Office1: | Attorney General of Michigan |
| Term Start1: | 1927 |
| Term End1: | 1928 |
| Predecessor1: | Clare Retan |
| Successor1: | Wilber M. Brucker |
| Office: | Member of the Michigan Senate |
| Term Start: | 1899 |
| Term End: | 1900 |
| Predecessor: | Rebekah Warren |
| Birth Date: | 1 August 1869 |
| Birth Place: | Maple Grove Township, Barry County, Michigan, U.S. |
| Alma Mater: | University of Michigan Law School |
William W. Potter (August 1, 1869 – July 21, 1940) was a politician from the U.S. state of Michigan.
Potter was born to Lucien B. and Clarinda L. Potter in Maple Grove Township, Barry County, Michigan. He was a resident of East Lansing and was married to Margaret D. Richardson.
Potter was an 1895 graduate of the University of Michigan Law School, and a member of the Michigan Senate from the 15th District, 1899–1900; Barry County Prosecuting Attorney, 1909–12; he became a candidate in the primary for Governor of Michigan, 1924. He served as Michigan Attorney General from 1927 to 1928 and resigned when he was appointed justice of Michigan Supreme Court. In 1935, he served as chief justice of the state supreme court.
William W. Potter was a member of Freemasons, Knights of Pythias, and Odd Fellows. He died just before his 71st birthday, in office, following an automobile accident. He is interred at Wilcox Cemetery, near his birthplace.