George Masso (November 17, 1926- October 22, 2019) was an American jazz trombonist, bandleader, vibraphonist, and composer specializing in swing and Dixieland. Masso is notable for his work from 1948–1950 as a member of the Jimmy Dorsey band.
Finding the life of a professional jazz musician financially difficult, Masso quit performing following his work with Dorsey. He returned to music in 1973 and performed with Bobby Hackett and Benny Goodman. In the late 1980s and early 1990s, he recorded with Barbara Lea, Bob Haggart, and Yank Lawson.