Marty Oliver Grosz (born February 28, 1930) is an American jazz guitarist, banjoist, vocalist and composer born in Berlin, Germany, perhaps most notable for his work with Bob Wilber, performing with and doing arrangements for him. Grosz has also been involved in projects involving Kenny Davern, Dick Sudhalter and Keith Ingham.

In 1986 Grosz became a charter member of The Classic Jazz Quartet, along with Dick Wellstood, Joe Muranyi, and Dick Sudhalter. Besides playing and singing with the group, Marty wrote most of its arrangements. He has appeared at guitar concerts with such players as Joe Pass, Herb Ellis, and Charlie Byrd.

Grosz' father is the German-American painter George Grosz. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.