Mary Osborne (July 17, 1921 – March 4, 1992) was an American jazz guitarist and guitar manufacturer. She began performing at a young age and featured on a radio program in North Dakota, where she grew up. She came to prominence in New York City in the 1940s and played with other jazz musicians such as Dizzy Gillespie, Art Tatum, Coleman Hawkins, and Thelonious Monk. After moving to California in 1968, she and her husband founded the Osborne Guitar Company