Marcum is a surname. Notable persons with that name include:
Art Marcum, American 21st century screenwriter Deanna B. Marcum (1946–2022), American librarian and nonprofit leader Diana Marcum (1963–2023), American journalist and writer Eric Marcum, subject of the United States v. Marcum Court of Appeals case John Marcum (born 1995), ARCA founder, NASCAR official Johnny Marcum (1909–1984), American Major League Baseball pitcher Justin Marcum (born 1984), American politician Leo Marcum (1942–2023), American politician and lawyer Shaun Marcum (born 1981), American former Major League Baseball pitcher Tim Marcum (1944–2013), American football coach
See also Marcum Q-function, mathematical function Marcom (disambiguation) Micheline Aharonian Marcom (born 1968), American writer Markham (disambiguation) Morecambe (disambiguation)