Harry John Martin (born 23 October 1992) is an English field hockey player who plays as a midfielder for Dutch Hoofdklasse club Hurley.

[1] His sister, Hannah Martin is an English field hockey player who plays as a midfielder or forward for England and Great Britain.

[3] He had been playing in the Men's England Hockey League Premier Division for Hampstead & Westminster.

One year later, On 1 December 2012, he made his senior tournament debut for England in a 3–1 defeat against India, in the 2012 Champions Trophy, in Melbourne, Australia.

He was the first player who has been involved in England Hockey's Single System (long term athlete development pathway) to be selected for an Olympic Games.