William G. Thompson | |
|---|---|
 | |
| Mayor of Detroit | |
| In office 1880–1883 | |
| Preceded by | George C. Langdon |
| Succeeded by | Stephen Benedict Grummond |
| Personal details | |
| Born | July 23, 1842 Lancaster, Pennsylvania, US |
| Died | July 20, 1904 (aged 61) Yonkers, New York, US |
| Spouse(s) | Adelaide Mary Brush Adele Campau |
William Gillon Thompson (July 23, 1842 – July 20, 1904) was a Union Army officer, lawyer, politician, and the mayor of Detroit, Michigan. He also founded Detroit's first major league baseball team.