USNS Pollux (T-AK-290), later T-AKR-290, the fourth United States Navy ship of the name, is an Algol-class vehicle cargo ship that is currently maintained by the United States Maritime Administration as part of the Ready Reserve Force (RRF) as SS Pollux (T-AKR-290). In keeping with the pattern of the naming the Algol-class ships after bright stars, the Pollux was named after Pollux, a star in the northern constellation of Gemini.