"Peter's Progress" is the 16th and final episode in the seventh season of the American animated television series Family Guy. It originally aired on Fox in the United States on May 17, 2009. In the episode, a psychic reads Peter's palms and discovers he led a fascinating past life as Griffin Peterson, a dignified gentleman in 17th-century England, who was the original founder of Quahog.

The seventh season of Family Guy first aired on the Fox network from September 28, 2008, to May 17, 2009, before being released as two DVD box sets and syndicated. The animated television series follows the dysfunctional Griffin family, who reside in the fictional town of Quahog, in the U.S. state of Rhode Island. The show features the voices of series creator Seth MacFarlane, Alex Borstein, Seth Green, and Mila Kunis in the roles of the Griffin family.