James Shannon Larkin (born April 24, 1967) is an American musician, best known as the drummer of the rock band Godsmack.

Prior to Godsmack, he was a member of Amen, Candlebox, Ugly Kid Joe, and Souls at Zero (formerly Wrathchild America).

The group disbanded and later reformed as Souls at Zero, signing with Energy Rekords and releasing an eponymous debut album that was well received by critics.

He briefly played with Black Sabbath at one show on July 1, 1997, when regular drummer Mike Bordin was unavailable.

His numerous side projects have included hardcore punk and thrash metal band Kiddie Porn with fellow Wrathchild guitarist Jay Abbene and bassist John "Tumor" Fahnestock, MF Pitbulls with members of Snot, and The Apocalypse Blues Revival with Tony Rombola.