USS Inca is a name used more than once by the U.S. Navy:
, a screw steamer, was built in 1898 by George Lawley & Son, South Boston, Massachusetts. , a steam ferry, was built for the Navy by Herreshoff Manufacturing Co., Bristol, Rhode Island, in 1911. , a motor boat, built in 1917 by Herreshoff Manufacturing Co., Bristol, Rhode Island. , an iron tugboat, was built in 1879 by J. H. Dialogue & Sons, Camden, New Jersey. , an unclassified miscellaneous vessel, would have been the fifth ship of the United States Navy to be named for the Inca Empire if she had received that name.