LeRoy Robert Ripley (February 22, 1890 – May 27, 1949) was an American cartoonist, entrepreneur, and amateur anthropologist, who is known for creating the Ripley's Believe It or Not! newspaper panel series, television show, and radio show, which feature odd facts from around the world.

Subjects covered in Ripley's cartoons and text ranged from sports feats to little-known facts about unusual and exotic sites. He also included items submitted by readers, who supplied photographs of a wide variety of small-town American trivia ranging from unusually shaped vegetables to oddly marked domestic animals, all documented by photographs and then depicted by his drawings.