John Henry Kirwan (9 February 1878, County Wicklow, Ireland – 9 January 1959, London, UK), commonly referred to as John Kirwan or Jack Kirwan, is a former Irish footballer and coach.
As a football player, he was described as an out and out winger with good pace and skills, playing as an outside-left for, among others, Everton, Tottenham Hotspur, Chelsea and Ireland.
He had previously played gaelic football for Dublin.
As a football coach he became the first professional manager of Dutch side Ajax.
He was the last survivor of the Tottenham team that won the 1901 FA Cup.