USNS Rincon (T-AOG-77) was a T1 tanker type, , in operation for the United States Navy from 1950 through the 1970s. She was originally constructed as MS Tarland for the United States Maritime Commission at the end of World War II, and intended for delivery to the United Kingdom under the terms of Lend-Lease. Completed in October 1945, she was delivered to the Army Transport Service of the United States Army under the name USAT Rincon. Transferred to the U.S. Navy in 1950, she transported gasoline during the Korean War, earning two battle stars in the process. After service extending into the 1970s, the ship was transferred to South Korea in February 1982. As ROKS So Yang (AOG-55), she served the South Korean Navy until the late 1990s, when she was returned to the United States. She was struck from the U.S. Naval Vessel Register on 23 October 1998.
Rincon (T-AOG-77)—originally slated for use by the British under the terms of the Lend-Lease Program— was laid down under