Rob Corddry (sometimes credited as Robert Corddry)graduated from Weymouth High School in Weymouth, Mass. in 1989. He then attended the University of Massachusetts Amherst. He had planned to study journalism when he arrived in Fall 1989. He stuck with the major for just two days.
He moved to New York in January 1994. He eventually landed acting jobs, including a year-long tour with the National Shakespeare Company. He trained in improv at the Upright Citizens Brigade Theatre in NYC, performing regularly with the sketch comedy group "Naked Babies" and spent two years with the sketch comedy group "Third Rail Comedy". Corddry's first notable television appearances were on Upright Citizens Brigade on Comedy Central from 1998–2000.
In spring of 2002 he auditioned for The Daily Show, where he remains today.
On October 4, 2005, his younger brother Nathan Corddry made his first appearance as a Daily Show correspondent.
In January 2006 it was announced that the Rob, and wife Sandra (a speech pathologist) are expecting a baby girl in July 2006.