USS Amphion (AR-13) was the lead ship of her class of repair ship built for the United States Navy during World War II. The second U.S. Navy vessel to be named Amphion, she was not commissioned until January 1946, five months after the end of the war. She was decommissioned in September 1971 and transferred to the Imperial Iranian Navy as IIS Chahbahan. She was purchased outright by Iran in March 1977. After the 1979 Iranian Revolution she remained in service with the Islamic Republic of Iran Navy through at least 1985. Her fate beyond that date is not reported in secondary sources.

A repair ship is a naval auxiliary ship designed to provide maintenance support to warships. Repair ships provide similar services to destroyer, submarine and seaplane tenders or depot ships, but may offer a broader range of repair capability including equipment and personnel for repair of more significant machinery failures or battle damage.