USS Wasaka III (SP-342) was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919. Wasaka III was a wooden-hulled motorboat built at Lynn, Massachusetts, by Britt Brothers, boat builders. Acquired by the U.S. Navy in the spring of 1917 for World War I service from Mr. John J. Martin of Boston, Massachusetts, under a free-lease agreement, Wasaka III apparently was manned by the Navy on 22 April 1917, as her deck log indicates that the first men — the most senior rating being a Machinist's Mate 2nd Class A. Rowbottom, USNRF — reported on board on that day. There is no record of a commissioning, and the deck log does not start until 1 June 1917.