USS Pecos or USNS Pecos may refer to the following ships of the United States Navy, named for the Pecos River:
, a Kanawha-class fleet replenishment oiler, 1920–1942 , a Suamico-class fleet replenishment oiler, 1942–1946; with Military Sea Transportation Service as USNS Pecos (T-AO-65) from 1950; struck 1974 , a U.S. Navy Henry J. Kaiser-class fleet replenishment oiler in service since 1989.
See also Pecos (disambiguation)