7th Cavalry is a 1956 American Western film directed by Joseph H. Lewis based on a story, "A Horse for Mrs. Custer", by Glendon Swarthout set after the Battle of the Little Big Horn.

[2] Captain Tom Benson has been granted a furlough to bring his bride–to–be Martha back to Fort Abraham Lincoln and his Regiment, the 7th Cavalry.

Exploring the vacant post he is met by the hysterical Charlotte Reynolds, whose husband replaced Benson as commander of his "C" Company and was killed at the Battle of the Little Big Horn.

Martha's father Colonel Kellogg comes to the post to conduct a Board of Inquiry into Custer's actions that Benson sees as a smear against a man he admires who cannot defend himself.

When the President of the United States orders the recovery of the slain officers and the burial of the cavalrymen who fell in the battle, Benson takes his misfits and military prisoners into Indian territory to perform the task.