Four Sons is a 1928 American synchronized sound drama film directed and produced by John Ford and written for the screen by Philip Klein from a story by I. A. R. Wylie first published in the Saturday Evening Post as "Grandmother Bernle Learns Her Letters" (1926). While the film has no audible dialog, it was released with a synchronized musical score with sound effects using the sound-on-film movietone process.

It is one of only a handful of survivors out of the more than 50 films Ford directed between 1917 and 1928. It starred Margaret Mann, James Hall, and Charles Morton. The film is also notable for the presence of the young John Wayne in an uncredited role as an officer. The film's soundtrack was recorded using the Movietone sound-on-film system but was also released in the sound-on-disc format.

A family is torn apart by the advent of World War I. It was remade in 1940 with the same title, starring Don Ameche and Eugenie Leontovich, and directed by Archie Mayo, although the war was updated to World War II.