USS Carola IV, was a patrol ship of the United States Navy, built in 1885 at Culzian, Scotland, as a steam yacht. In June 1917, when she was owned by Leonard Richards of New York City, she was purchased by the US Navy for World War I service. Commissioned in early July, she crossed the Atlantic to Brest, France, during that month and the next, voyaging by way of Newfoundland and the Azores. After brief patrol operation along the French coast, in October 1917 Carola IV was condemned as unseaworthy and dismantled for harbor service as an accommodation vessel. She was employed in that capacity through the end of the Great War and for a year beyond. Carola IV was decommissioned in late December 1919 and sold to a resident of Brest.