Calder is a surname. Notable people with the surname include:
Alexander Calder (Beaumont, Texas) (1806–1853), first mayor of Beaumont, Texas
Alexander Milne Calder (1846–1923), American sculptor, father of:
Alexander Stirling Calder (1870–1945), American sculptor, father of:
Alexander Calder (1898–1976), American sculptor, the inventor of mobile sculpture
Bob Calder (b. 1907), Scottish footballer
Clive Calder (b. 1946), recording executive and businessman
David Calder (actor) (b. 1946)
David O. Calder (1823–1884), Mormon pioneer
Eddie Calder, American college basketball player
Finlay Calder (b. 1957), Scottish rugby player
Frank Calder (1877–1943), the first NHL President, eponymous to:
Frank Arthur Calder (1915–2006), Canadian politician, plaintiff in Calder v. British Columbia (Attorney General)
Harry Calder (1901–1995), South African cricketer
James Calder (1826–1893), 5th President of the Pennsylvania State University
James Alexander Calder (1868–1956), Canadian politician
Jim Calder (footballer) (b. 1960) Scottish Footballer - Inverness Caledonian Thistle
Jim Calder (rugby league) New Zealand rugby league international
Jim Calder (rugby union) (b. 1957) Scottish rugby union international
John Calder (b. 1927), founder of Calder Publishing
Katherine Calder (b. 1980), cross-country skier and Winter Olympian
Mary Gordon Calder (c. 1906-1992), Scottish palaeobotanist
Peter Ritchie Calder, (Lord Ritchie-Calder) (1906–1982), Scottish author, journalist and academic, father of:
Nigel Calder (b. 1931), British science writer, father of:
Simon Calder (b. 1955), travel writer
Angus Calder (b. 1942), historian
Robert Calder, (1745–1818), British naval officer
Sam Calder (b. 1916), Australian politician
William M. Calder (1869–1945), senator from New York
