Mark Egan (born January 14, 1951, in Brockton, Massachusetts)[1] is an American jazz bassist and trumpeter known for his membership in the Pat Metheny Group and the Gil Evans Orchestra.

They were joined on several Elements releases by Bill Evans- saxophones, Clifford Carter- keyboards, Steve Kahn-Guitar, Joe Caro-Guitar, Airto Moreira- Percussion, Flora Purim-Vocals, Jeff Mironov- Guitar, Stan Samole-Guitar, David Mann-Saxophones, and Manolo Badrena-Percussion.

Recent collaborations have created Electric Blue, with Drummer Danny Gottlieb, and Dreaming Spirits, with Arjun Brugemann, all released on the Wavetone Records Label.

He has appeared on the soundtracks of movies including The Big Lebowski, Aladin, Two Moon Junction, The Object of My Affection, You've Got Mail, The Color of Money, Rollover, Quick Change, Blown Away (1986 film)|Blown Away, and A Chorus Line.

[2] Egan has toured and recorded with a vast range of artists including Gil Evans, Pat Metheny, Stan Getz, Sting, Arcadia, Roger Daltrey, Richie Havens, Joan Osborne, Marianne Faithfull, Michael Franks, Steve Grossman, David Liebman, Mitchel Forman, Mike Stern, Terumasa Hino, Laurie Anderson, Carly Simon, Art Garfunkel, John McLaughlin, Larry Coryell, Pat Martino, Judy Collins, Cyndi Lauper, Sophie B. Hawkins, Bill Evans, Lew Soloff, Joe Beck, Jim Hall, Airto Moreira, Flora Purim, Toninho Horta, Linley Hamilton, Paul Shaffer, Gato Barbieri, Chuck Loeb, Hiram Bullock, Clifford Carter,Shawn Colvin, Dar Williams, Gil Goldstein, Eumir Deodato, Marc Cohn, Mark Murphy, George Grunz, Vicki Sue Robinson, Walter Bishop Jr., Sonny Fortune, Frank Wess, Tania Maria, Jackie Mclean, Rory Block, Mimi Farina, Alex Digrassi, Reza Kahn, Jeff Ciampa, Sergio Pereira, Karl Latham, Special EFX, Arjun Bruggemann, Krishna Das and The Pointer Sisters.