USS Rockville (EPCER-851), also named USS PCE(R)-851, PCER-851 and ARC San Andres (BO 151), was a PCE-842-class patrol craft of the United States and Colombian navies. She served as a rescue, hospital, research and survey ship while in service with the two navys. Named after small towns in Maryland and Connecticut, she was the only U.S. naval vessel to bear the name.