The USS S-44 was a United States Navy submarine, part of the S-class fleet, commissioned in 1942. Designed for coastal defense and reconnaissance, it was equipped with torpedoes and had a displacement of about 1,200 tons when submerged. The submarine was primarily used during World War II in the Pacific Theater. Throughout its service, the USS S-44 conducted various patrols and training exercises. It was notable for its ability to operate stealthily underwater, which was crucial for gathering intelligence and engaging enemy vessels. The submarine was decommissioned in 1945 and later scrapped.