Robert "Rob" Renzetti is an American animator and director who created the animated television series My Life as a Teenage Robot. Renzetti has been writer, director, and storyboard artist for several Cartoon Network shows, including Dexter's Laboratory, The Powerpuff Girls, Foster's Home for Imaginary Friends, and 2 Stupid Dogs.

For Family Guy, he directed the episodes "Death Lives" and "E. Peterbus Unum".