The Blank Theory was a five-piece rock group from Chicago, Illinois.

They self-released two albums, Blinding Process in 1998 and Catalyst in 2000. Catalyst included the track "Nevermind" which was featured in a segment of MTV Road Rules. While the first two independent releases were hard edged indie rock, they moved more toward metal when writing for the third release. Upon signing to New Line Records, they teamed up with Adam Schlesinger (Ivy, Fountains of Wayne) and James Iha (The Smashing Pumpkins, A Perfect Circle) for production of Beyond the Calm of the Corridor. The Blank Theory released Beyond the Calm of the Corridor on September 24, 2002 via independent label, New Line Records.