Mary Therese "Tyger" Friel (born February 10, 1959) is an American model, teacher, activist, businesswoman beauty pageant titleholder who held the title Miss USA 1979.

Friel, who grew up in Pittsford, New York won the titles Miss New York USA and Miss USA. She was later a model, and opened her own modelling agency in 1987. She currently trains and represents many models, as well as training beauty pageant participants.