Def Con Zero is an album by Cloak-n-Dagga, a group composed of rappers Canibus and Phoenix Orion, released on October 25, 2005 through Head Trauma Records and First Kut Records.

The album features K-Solo, Kool G Rap, and Free among others.

A DVD with over an hour's worth of material concerning the rappers and the creation of the album is included.

The bonus DVD contains a variety of material, including a short mix of videos featuring the songs on the album, interviews, a behind-the-scenes look at the making of the album and a photo gallery.

The DVD was produced by Tyler Holt of 4down Productions.