Joel Michael Stroetzel is an American musician, best known as the rhythm guitarist from the Massachusetts metalcore band Killswitch Engage.

Killswitch Engage is an American metalcore band from Westfield, Massachusetts, formed in 1999 after the disbanding of Overcast and Aftershock. Killswitch Engage's current lineup consists of vocalist Jesse Leach, guitarists Joel Stroetzel and Adam Dutkiewicz, bassist Mike D'Antonio, and drummer Justin Foley. The band has released eight studio albums and three live performance albums. Their eighth studio album, Atonement, was released on August 16, 2019.