Greg Cohen (born July 13, 1953) is an American jazz bassist who has been a member of John Zorn's Masada quartet and worked with numerous other noted musicians for over four decades.

Cohen plays traditional jazz and other styles, including work with Ken Peplowski, Kenny Davern, Marty Grosz, and Woody Allen.

He has also worked with Tom Waits, David Byrne, Elvis Costello, Dagmar Krause, David Sanborn, Susana Baca, Gal Costa, Marisa Monte, Laurie Anderson, Willie Nelson, Bill Frisell, Norah Jones, Dave Douglas, Tricky, Jesse Harris, Keith Richards and Charlie Watts, Joey Baron, Donovan, Crystal Gayle, Bob Dylan, Nina Nastasia, Alan Watts, Lee Konitz, Richie Havens, Dino Saluzzi, Lou Reed, Marianne Faithfull, Odetta, Vesna Pisarović, Danny Barker, Tim Sparks, and Antony and the Johnsons.

He appeared in the documentary Wild Man Blues (directed by Barbara Kopple) about a 1996 European tour by Allen and his band.

[3][4] With Terry Adams With Laurie Anderson With Elvis Costello With Christina Courtin With A. J. Croce With Dave Douglas With Marty Grosz With Tim Sparks With Tom Waits With Victoria Williams With John Zorn With others