Magner is a surname. Notable people with the surname include:
Colm Magner, Canadian actor, writer, and director
Francis Joseph Magner, American Roman Catholic bishop
John Magner, baseball player
Michael Magner, soldier
Stubby Magner, baseball player
Ted Magner, former professional manager
Thomas F. Magner, a U.S. Representative from New York
Aron Magner, keyboardist from The Disco Biscuits