William Macomb was a British colonial merchant and fur trader in the Detroit, Michigan area before and after the American Revolutionary War. He got his start as a young man in the colony of New York. He was a brother of Alexander Macomb, and the two were partners in Detroit.
- Position held
- Member of the Legislative Assembly of Upper Canada
- Citizenship
- Canada
- Born
- 1751
- Died
- April 16, 1796
