Alexander Calder (1898–1976) was an American sculptor and inventor of the mobile sculpture.

Alexander Calder may also refer to:

Alexander Milne Calder (1846–1923), American sculptor, father of Alexander Stirling Calder Alexander Stirling Calder (1870–1945), American sculptor, father of Alexander Calder Alexander Calder (mayor) (1806–1853), first mayor of Beaumont, Texas

Other people Alex Calder (1989–2026), Canadian musician