The SS City of Flint was a cargo ship of a type known colloquially as a Hog Islander, due to it being built at the Hog Island Shipyard, Philadelphia by for the United States Shipping Board (USSB), Emergency Fleet Corporation. City of Flint was named to honor the citizens of Flint, Michigan for their effort in Liberty Loan drives during World War I. City of Flint was the first American ship captured by Nazi Germany during World War II.