St James's Church, Piccadilly, also known as St James's Church, Westminster, and St James-in-the-Fields, is an Anglican church on Piccadilly in the centre of London, United Kingdom. The church was designed and built by Sir Christopher Wren. The church is built of red brick with Portland stone dressings. Its interior has galleries on three sides supported by square pillars, and the nave has a barrel vault supported by Corinthian columns. The carved marble font and limewood reredos are both notable examples of the work of Grinling Gibbons.