Austin Sarsfield Ireland "Grally" Gralton (9 February 1871 – 1 July 1919) was a rugby union player who represented Australia.
Gralton, a scrum-half, was born in Kempsey, New South Wales and claimed three international rugby caps for Australia.
His debut game was against Great Britain at Sydney, on 24 June 1899, the inaugural rugby Test match played by an Australian national representative side.