Ketchum (surname)
Ketchum is a surname that originated in England. Notable people and fictional characters with the surname include:
Real people
- Annie Chambers Ketchum (1824–1904; (religious name, Sister Amabilis), American educator, lecturer, writer
 - Daniel Ketchum (born 1981), former American swimmer
 - Gerald Ketchum (1908–1992), commanded the icebreaker USS Burton Island (AG-88)
 - Gus Ketchum (1897–1980), American Major League Baseball pitcher
 - Hal Ketchum (1953–2020), American country music singer-songwriter
 - Henry Ketchum (1839–1886), Canadian engineer
 - Jack Ketchum (1946–2018), American horror writer
 - James S. Ketchum (1931–2019), American psychiatrist
 - Jesse Ketchum (1782–1867), tanner and political figure in Upper Canada
 - Menis E. Ketchum, Chief Justice of the Supreme Court of Appeals of West Virginia
 - Morris Ketchum (1796–1880), American banker and financier of the 19th century
 - Richard Ketchum (1773–1845), political figure in New Brunswick
 - Richard M. Ketchum (1922–2012), American historian and magazine editor
 - Robert Glenn Ketchum (born 1947), landscape and nature photographer
 - Rosemary Ketchum, American politician and community organizer
 - Tom Ketchum (1863–1901), a.k.a. "Black Jack" Ketchum, U.S. Western outlaw
 - Wesley Harrington Ketchum (1878–1968), medical doctor, introduced Edgar Cayce to the national medical community in a 1910 presentation to the American Association for Clinical Research
 - William Ketchum (mayor), mayor of the City of Buffalo, New York
 - William M. Ketchum (1921–1978), U.S. Representative
 - William Scott Ketchum (1813–1871), U. S. Army officer before and during the American Civil War
 
Fictional characters
- Ash Ketchum, a fictional Pokémon Trainer figure
- Delia Ketchum, his mother
 
 - Kevin Ketchum, an OZ prisoner