USS Zahma (IX-63), an unclassified miscellaneous vessel, was the only ship of the United States Navy to be given that name. A wooden-hulled ketch with an auxiliary engine, she was designed by Bowdoin B. Crowninshield and completed in 1915 at Neponset, Massachusetts, by George Lawley & Son, for John H. Cromwell of Cold Spring Harbor, Long Island, New York. Inspected by the Navy at the entry of the United States into World War I for possible service as a patrol craft, the vessel was rejected as "unsuitable for naval use."