Paul Steven Bostaph (born March 4, 1964[1]) is an American drummer best known as a member of the thrash metal band Slayer, initially from 1992 to 2001, again from 2013 to 2019, and in 2024, after the reunion.

[10] After auditioning several drummers and listening to hundreds of demo tapes, Bostaph was recommended by Slayer guitarist Kerry King's guitar technician.

"[10] Bostaph left the band in 1996 to concentrate on his solo project, Truth About Seafood, and was replaced by Jon Dette; however, he returned in 1997.

[10] Bostaph departed from Slayer after the release of God Hates Us All, following a chronic elbow injury he had sustained that would hinder his ability to play.

Unwilling to give up music, Bostaph joined Systematic in 2003 – a band which he had previously formed with vocalist Tim Narducci and guitarist Adam Ruppel before recording Slayer's Diabolus in Musica.

After finishing Systematics tour, Bostaph underwent surgery – not touching a drum kit for over a year until he received a phone call from Exodus members.

[13] When Bostaph received the phone call, two members had already left Exodus, and drummer Tom Hunting was thinking about leaving.

[10] However, on March 28, 2007, Bostaph announced that he parted ways with Exodus; "They now have their original drummer Tom Hunting back in the band.

The November 27 show with this line-up at the Hollywood Palladium was captured on the Testament live EP Return to the Apocalyptic City.

In June 2011, Testament began recording their next studio album, entitled Dark Roots of Earth, expected to be released on April 27, 2012.

[16] However, due to a "serious injury" (tendonitis in his wrist),[17] Paul was not involved in the recording sessions; Gene Hoglan (who previously played on the band's 1997 album Demonic) filled in for him.

[19] On May 30, 2013, Slayer announced via their official Facebook page that Paul Bostaph had returned once again to replace long-time member Dave Lombardo behind the kit on a full-time basis.

's rotating cast of members include Andreas Kisser, Tim "Ripper" Owens, David Ellefson, Mike Portnoy, Jimmy DeGrasso and Roy Mayorga.

is on their second European tour with the following line-up: Andreas Kisser, Tim "Ripper" Owens, Paul Bostaph and James LoMenzo.

[23][24] Due to the death of announced bassist Paul Gray, LoMenzo agreed on only one day's notice to fly to Portugal and rescue the Rock in Rio Festival where HAIL!

Bostaph reunited with his former Slayer bandmate Kerry King on the latter's upcoming 2024 solo debut album, From Hell I Rise.