Jay Dee Bentley (born June 6, 1964) is the bassist and co-founding member of the punk rock group Bad Religion.

As with guitarist Brett Gurewitz and lead singer Greg Graffin, he was a student of El Camino Real High School.

[citation needed] Bentley was a onetime member of such notable L.A. groups as Wasted Youth, T.S.O.L., The Circle Jerks and Cathedral Of Tears.

line-up – adding Circle Jerks' Greg Hetson as the band's second guitarist – was reuniting to record the first three reunion albums, Suffer, No Control and Against the Grain, which are often considered their best releases[citation needed].

[3] Since the early 2010s, Bentley has been the regular touring member of Me First And The Gimme Gimmes filling in on bass and backup vocals for Fat Mike.