Monstrosity may refer to:

• Monstrosity (band), a death metal band from Florida
• Monstrosity (film), a science fiction film from 1964
• Monstrosity!, a 1988 album by the California State University, Los Angeles Jazz Ensemble

Monstrosity! is the final LP Vinyl album release by the California State University, Los Angeles Jazz Ensemble before recording on digital/CD format in 1990. In addition to the big band the LP featured the CSULA Jazz Quintet which won the Pacific Coast Collegiate Jazz Festival Combo division for 1988.    Los Angeles Times jazz critic Zan Stewart gave the recording four of five stars in his May 1989 review. The jazz band had numerous student musicians that have made a name for themselves as professionals to include Sharon Hirata, Luis Bonilla, Jack Cooper, Charlie Richard, Corey Gemme, Eric "Bobo" Correa, Vince Dublino, Alan Parr, Paul De Castro, Alex Henderson, and José Arellano.