P. T. Barnum (1810–1891) was an American businessman and circus founder.
Barnum may also refer to:
Places United States Barnum, Iowa, a small city Barnum, Minnesota, a small city Barnum Township, Carlton County, Minnesota Barnum, Texas, an unincorporated community Barnum, West Virginia, an unincorporated community Barnum, Wisconsin, an unincorporated community
People with the surname George S. Barnum (1819–1893), Wisconsin pioneer and state legislator Gertrude Barnum (1866–1948), American social worker and labor organizer H. B. Barnum (born 1936), American songwriter Harvey C. Barnum Jr. (born 1940), retired decorated US Marines officer and namesake of USS Harvey C. Barnum Jr. Henry A. Barnum (1833–1892), US Civil War general from New York Marcus H. Barnum (1834–1904), American politician
Other uses Barnum effect, a cognitive bias named after P. T. Barnum Barnum (musical), a Broadway musical based on P.T. Barnum's life Barnum's American Museum, New York City, US Barnum, the largest coprolite from a carnivore, located at the Poozeum
See also Barnham (disambiguation)