John Brunton (1837–1917) was a Scottish manufacturer and philanthropist. The Brunton Theatre in Musselburgh is named after his family.
Owner of a large wireworks he was the creator of lenticular line, used for aircraft production. Originally called Bruntonised wire, due to inadequate patenting the creation was taken over by the Royal Aircraft Factory in 1912 and this streamlined (non-circular) wire was thereafter called RAF wire.