USS Alameda (SP-1040) was the proposed designation for an motorboat that never actually served in the United States Navy. Alameda was a private motorboat built in 1917 by the Western Boat Building Company at Tacoma, Washington, probably for use as a fishing vessel. In the spring of 1917, the U.S. Navy inspected her in for possible World War I service as a patrol boat, and she was registered accordingly with the naval section patrol designation SP-1040. Though her official data card describes her as "brand new well and staunchly built" and contains a note that she was reported to have been delivered to the Navy and commissioned on 2 June 1917. However, no records exist that show that the Navy never took possession of or commissioned Alameda, and she appears to have had no naval service.