The third USS Cayuga (LST-1186) was a Newport-class tank landing ship in the United States Navy. She was named after a county in New York. Cayuga was laid down on 28 September 1968 at San Diego, California, by the National Steel & Shipbuilding Corporation; launched on 12 July 1969; sponsored by Mrs. Luther C. Heinz; and commissioned on 8 August 1970, Commander William T. Hollenbach in command. She was decommissioned in 1994 and transferred to Brazil were she serves as Mattoso Maia (G-28).