Margaret Fulton Spencer (1882–1966) was a painter and early American woman architect who designed and built the architecturally unique dude ranch Las Lomas Estates outside of Tucson, Arizona. She was the second woman to become a member of the American Institute of Architects.
- Occupation
- architect, painter
- Citizenship
- United States
- Born
- September 26, 1882
- Died
- January 1, 1966
