Pro-Pain is a New York-based Hardcore and Groove Metal band formed in 1992 by vocalist and bassist Gary Meskil and drummer Dan Richardson.

Current members:
Gary Meskil – bass, vocals (1992-present)
Greg Discenza – lead guitar (2019-present)
Eric Klinger – rhythm guitar (1999-2007; 2024-present)
Jonas Sanders – drums (2011-present)

Former members:
Matt Sheridan - guitar (2016-2024)
Marshall Stephens - guitar (2007-2016)
Adam Phillips – guitar (2011-2019)
Dan Richardson – drums (1992-1997)
Nick St. Denis – guitar (1994-1995)
Mike Hollman – guitar (1994-1995)
Rob Moschetti – guitar (1996-1998)
Daniel Wiener - drums (1994-1995)
Eric Klinger - guitar (1999-2007)
Dave Chavarri – drums (1997-1998)
Mike Hanzel – drums (1998)
Eric Matthews – drums (1999-2003)
Rich Ferjanic – drums (2003-2004)
JC Dwyer - drums (2004-2009)
Tom Klimchuck - guitar (1992-1994, 1996-2011)
Rick Halverson - drums (2009-2011)