USS ATR-31 was an ATR-1-class Rescue Ocean Tug of the United States Navy during World War II, and later the Peruvian Navy.

ATR-31 was laid down by Northwest Shipbuilding Company on 7 September 1942 in South Bellingham, Washington.

During World War II, ATR-31 was assigned to the Asiatic-Pacific Theater and participated in the Ormoc Bay and Leyte landings, as well as operations in West New Guinea.

[2] On 5 September 1947, the ship was transferred to the Republic of Peru, and began Peruvian Naval Service as the BAP Condestable Selendon (Q01).

[4] ATR-31 received two Battle Stars for World War II service.