Thomas Hagen

Thomas or Tom Hagen may refer to:


 * Thomas Hagen (bobsledder) (born 1950), Swiss bobsledder
 * Thomas Hagen (politician) (1919–1985), New Caledonian politician
 * Thomas B. Hagen (born 1935/36), American billionaire businessman
 * Tom Hagen, a fictional character in The Godfather
 * Tom Hagen (businessman) (born 1950), Norwegian businessman
 * Tom Harald Hagen (born 1978), Norwegian football referee