Rynox is a 1932 British crime film directed by Michael Powell and starring Stewart Rome, John Longden and Dorothy Boyd. Rynox was adapted from a 1930 novel by popular thriller writer of the day Philip MacDonald. It was made at Walton Studios outside London and was a second feature.

For many years Rynox was believed to be among the lost films of Powell's 1931–1936 quota quickie period; however an original print was found in 1990 in the vaults of Pinewood Studios and was subsequently transferred and restored by the BFI National Archive.