William Armstrong Percy III (December 10, 1933 – October 30, 2022) was an American professor, historian, encyclopedist, and gay activist. He taught from 1968 at the University of Massachusetts Boston, and started publishing in gay studies in 1985.
- Occupation
- historian, university teacher, medievalist
- Citizenship
- United States
- Born
- December 10, 1933
- Died
- October 30, 2022
