Marta Thoma Hall is an American painter and sculptor based in the San Francisco Bay Area and Kauai, HI. As an artist she is known for her unique juxtaposition of imagery with a surreal bent. She exhibits art and unusual installations of steel and glass across the United States and Costa Rica.

Thoma Hall studied fine arts at UC Berkeley and San Francisco State University. In 2022 she founded Hall Art + Technology Foundation (HATF), an educational arts foundation focused on the intersection of art and science in the modern world.