USNS Spica (T-AFS-9), was a combat stores ship acquired by the U.S. Navy from the United Kingdom in 1981.

She participated in Operation Fiery Vigil to evacuate Clark Air Base personnel following the Mount Pinatubo Eruption in 1991.

Before her U.S. Navy career, Spica served the United Kingdom's Royal Fleet Auxiliary as RFA Tarbatness (A345).

RFA Tarbatness (A345) was built at Swan Hunter & Wigham Richardson Ltd., Wallsend-On-Tyne, England, for the Royal Fleet Auxiliary.

Spica was purchased by the U.S. Navy and placed into non-commissioned service as a combat stores ship on 1 November 1981 as the USNS Spica (T-AFS-9), a unit of the Military Sealift Command (MSC) Naval Auxiliary Force Atlantic.