Chris Vrenna (born February 23, 1967) is an American musician, producer, engineer, remixer, programmer, and founder of the electronic band Tweaker.

At age 19, while attending Kent State University, Vrenna was recruited by acquaintance Trent Reznor, whom he had met during high school in Pennsylvania,[2] to play drums for local Cleveland, Ohio, band the Exotic Birds.

[4] As producer, remixer, or engineer Vrenna has worked with The Smashing Pumpkins, U2, Nine Inch Nails, Skinny Puppy, Humanzi, Gary Numan, Scar the Martyr, David Sylvian, Mudvayne, Lords of Acid, God Lives Underwater, Megadeth, Rammstein, Metallica, The Rasmus, Weezer, P.O.D., David Bowie, Slipknot, Cold, underwater, Scarling., Hole, Marilyn Manson, Rob Zombie, Green Day, Bush, Live, Adema, the Wallflowers, Dir En Grey, Psyclon Nine, and others.

In April 2011, following the departure of Marilyn Manson's drummer Ginger Fish, Chris Vrenna was announced to be his official replacement.

[12] In 2017, it was announced by Vrenna's Facebook page that he would be composing music for the upcoming video game, Quake Champions, which marks his second collaboration with id Software since Doom 3.

[16] In May 2024 it was announced that Vrenna would join the faculty of the University of Michigan's School of Music, Theatre, and Dance as an assistant professor in the fall 2024 semester.