USNS Earl Warren (T-AO-207) is the third of the John Lewis-class of underway replenishment oilers, operated by the Military Sealift Command (MSC) to support ships of the United States Navy.

Earl Warren served in the US Army during the World War I and held the rank of first lieutenant.

[5] The ship was officially named during a ceremony at the District of Columbia City Hall in Washington, D.C., on 14 December 2016.

In attendance at the ceremony was sponsor Elena Kagan, an Associate Justice of the Supreme Court of the United States.

[1] On 28 October 2022, Earl Warren was launched at the National Steel and Shipbuilding Company shipyard in San Diego[2] and christened by Elena Kagan on 21 January 2023.