Igopogo is a legendary cryptozoological creature which is rumored to dwell in Lake Simcoe, Ontario, Canada. The creature's name is ostensibly based on the Ogopogo, of Lake Okanagan, British Columbia, and also the title 1952 book I Go Pogo, a slogan often mentioned in the comic. It is also called "Kempenfelt Kelly" after the bay that extends from the lake into the city of Barrie, Ontario.

According to legend, the Igopogo is described with a relatively canine-esque head, differing from other well-known cryptozoological creatures. Because of this, many believers have speculated that it is related to such canine-like aquatic animals as the Irish crocodile; also known as the Dobhar-chu. According to eyewitness accounts, the creature has also been seen basking in the sun for extensive periods of time; implying that it is able to breathe air.

Walter Crawford Kelly, Jr. (August 25, 1913 – October 18, 1973), or Walt Kelly, was an American animator and cartoonist, best known for the comic strip, Pogo. He began his animation career in 1936 at Walt Disney Studios, contributing to Pinocchio and Fantasia. Kelly resigned in 1941 at the age of 28 to work at Dell Comics, where he created Pogo. The subsequent comic strip is where Kelly's works began to include political and philosophical commentary. In 1973, Kelly died of diabetes in Woodland Hills, California.

Walt Kelly was born of Irish-American heritage in Philadelphia, Pennsylvania to Walter Crawford Kelly, Sr. and Genevieve (née MacAnnula) Kelly. When he was two years old, the family moved to Bridgeport, Connecticut. After graduating from Warren Harding High School in 1930, Kelly worked at odd jobs until he was hired as a crime reporter on the Bridgeport Post. He also took up cartooning and illustrated a biography of fellow Bridgeport native P. T. Barnum. Kelly was extremely proud of his journalism pedigree and considered himself a newspaper man as well as a cartoonist.