William B. Cronyn House, also known as the House at 271 Ninth Street, is a historic home in Park Slope, Brooklyn, New York City. It was built in 1856 and is a three-story Second Empire style dwelling with a slate covered mansard roof. The roof has ornamental iron cresting and a central half-story cupola with clerestory.
In 1898, Charles M. Higgins acquired the house for use as the headquarters of the Charles M. Higgins Company. In 1899, a five-story factory was built at 240 Eighth Street behind the property to serve as the Higgins Ink factory. The house is currently used as a residential property.
It was listed on the National Register of Historic Places in 1982.