Sixteen Fathoms Deep is a 1934 American film directed by Armand Schaefer and starring Lon Chaney Jr, Sally O'Neil and Russell Simpson.

A sponge diver, Joe Bethel, hopes to make enough money to buy his own boat and marry his fiancée, Rosie.

He must deal with a villainous fellow diver, Savanis.

O'Neil made the film after missing out on the role in Sitting Pretty (1933) to Ginger Rogers.

[2] The New York Times called Sixteen Fathoms Deep a "good swaggering specimen" of action melodrama, "exciting, plausible and a lot of fun.