The USS Proteus (AS-19) is a submarine tender of the United States Navy, launched in 1945. Designed to support submarines, it provides maintenance, supplies, and repair services. The ship is named after the Greek sea god Proteus, known for his ability to change shape. Throughout its service, the USS Proteus has been involved in various operations, including the Cold War and post-war missions. It has played a crucial role in enhancing the operational readiness of submarines, ensuring they are equipped and maintained for effective naval operations.