Leslie Frank Cupples MM (8 February 1898 – 10 August 1972) was a New Zealand rugby union player. A loose forward, Cupples represented Bay of Plenty at a provincial level, and was a member of the New Zealand national side, the All Blacks, from 1922 to 1925. He played 29 matches for the All Blacks including two internationals, scoring six tries in all. Cupples was almost certainly the only member of the Exclusive Brethren sect to play for the All Blacks. Cupples farmed on Cambridge Rd near Hanlin Rd. He was particularly proud of his belted Galloway cattle.