George Mraz (born Jiří Mráz; 9 September 1944 – 16 September 2021)[1] was a Czech-born American jazz bassist and alto saxophonist.

[2] He was a member of Oscar Peterson's group, and worked with Pepper Adams, Stan Getz, Michel Petrucciani, Stephane Grappelli, Tommy Flanagan, Jimmy Raney, Chet Baker, Joe Henderson, John Abercrombie, John Scofield, and Richie Beirach, among others.

[3] He also appeared with Joe Lovano, Hank Jones and Paul Motian on Lovano's records I'm All For You and Joyous Encounter.

The immediate cause of death was undisclosed, though he had battled pancreatic cancer in 2016.

[4] With the New York Jazz Quartet With Pepper Adams With John Abercrombie With Toshiko Akiyoshi With Eric Alexander With Chet Baker With Kenny Barron With Richie Beirach With Dee Dee Bridgewater With Bob Brookmeyer With Kenny Burrell With George Cables With Benny Carter With Arnett Cobb With Larry Coryell With Kenny Drew With Yelena Eckemoff featuring Mark Turner, Joe Locke & Billy Hart With Jon Faddis With Art Farmer With Tommy Flanagan With Stan Getz With Dizzy Gillespie With Urbie Green With Jim Hall With Sir Roland Hanna With Jaroslav Jakubovič With Scott Hamilton With Elvin Jones With Fred Lipsius With Keystone Trio With Jimmy Knepper With Steve Kuhn With Andy LaVerne and Al Foster With John Lewis With Joe Lovano With Warne Marsh With Greg Marvin With Carmen McRae With Charles Mingus With Mark Murphy With Mike Nock With Oscar Peterson With Art Pepper With Michel Petrucciani & Stephane Grappelli With Quest With Jimmy Raney With John Scofield With Zoot Sims With The Thad Jones/Mel Lewis Orchestra With McCoy Tyner With Mal Waldron With Larry Willis