Gustavus William Francis Blake "Gus" Kelly (2 April 1877 in Dublin, Ireland – 16 August 1951 in County Roscommon, Ireland) was an Irish cricketer.
A right-handed batsman and a right-arm fast bowler, he played 18 times for the Ireland cricket team between 1895 and 1914 including nine first-class matches.
He also played first-class cricket for Oxford University and the MCC.