Richard Mullock (3 May 1851 – 1920) was a Welsh sporting administrator and official, who is most notable for organising the first Welsh rugby union international game and was instrumental in the creation of the Welsh Football Union, which became the Welsh Rugby Union in 1934. Mullock came from an Anglo-Irish family; his family's firm in Wales, Henry Mullock & Son, was a printers based on Commercial Street in Newport, South Wales.