USS Estelle (SP-747), later USS SP-747, was a United States Navy patrol vessel commissioned in 1917 and stricken in 1933. Estelle was built as a private motorboat of the same name. The U.S. Navy acquired her in 1917 for use as a section patrol vessel in World War I. She apparently was commissioned that year as USS Estelle (SP-747). Little information is available regarding Estelle's naval career. Apparently she saw service as a section patrol boat somewhere along the coast of the United States for the rest of World War I. She was renamed USS SP-747 sometime in 1918.