Gerald Patrick Desmond Hartigan (30 December 1884 in King William's Town, Cape Province – 7 January 1955 in Durban, Natal) was a South African cricketer who played in five Tests from 1912 to 1914.
A right-arm fast medium bowler and right-hand batsman, Hartigan made his first-class career with Border, taking 92 wickets and scoring three centuries.
His best of 176 came against Eastern Province in 1910-11.He also played six matches of soccer for South Africa.