Joseph A. Creaghan (July 15, 1883 – April 15, 1966) was an American film actor.

He appeared in more than 300 films between 1916 and 1965, and notably played Ulysses S. Grant nine times between 1939 and 1958, most memorably in Union Pacific and They Died with Their Boots On.

[1] Crehan's Broadway credits include Twentieth Century (1932), Lilly Turner (1932), Angels Don't Kiss (1932), Those We Love (1930), Sweet Land of Liberty (1929), Merry Andrew (1929), Ringside (1928), and Yosemite (1914).

[3] In 1961, credited as "Joe Crehan", he appeared as "Thomas Boland" in the TV Western series Bat Masterson (S3E18 "The Prescott Campaign").

On April 15, 1966, Crehan died of a stroke in Hollywood, California.