USS Lydia has been the name of more than one United States Navy ship, and may refer to:
, a patrol vessel in commission from 1917 to 1919 Service: Served as a dispatch and harbor patrol boat in Boston and later as a messenger and dispatch boat in Norfolk, Virginia. Decommissioned: April 10, 1919, and returned to its owner Type: Patrol vessel. Commissioned: August 18, 1917 , a cargo ship in commission from 1918 to 1919 Type: Cargo ship. Acquisition: Acquired by the Navy in 1918 from the U.S. Shipping Board. Commissioned: October 26, 1918. Service: Assigned to the Naval Overseas Transportation Service, carrying aviation steel and general supplies to France and later food supplies to the Mediterranean.