Alexander Milne may refer to:
Alexander Milne (entrepreneur) (1742–1838), Scottish-American entrepreneur
Alexander Milne (civil servant) (died 1850), British civil servant
Sir Alexander Milne, 1st Baronet (1806–1896), Royal Navy admiral
Alexander Taylor Milne (1906–1994), English historian
Alec Milne (Alexander Soutar Milne, born 1937), Scottish former professional footballer for Cardiff City
Alec Milne (footballer, born 1889) (Alexander James Milne, 1889–1970), footballer for Doncaster Rovers and Stoke
Alex Milne (artist), Canadian comic book artist
Alan Alexander (A. A.) Milne (1882–1956), English writer