William James Cameron Calnan (born 17 April 1996) is an English field hockey player who plays as a forward for Dutch Hoofdklasse club HDM and the England and Great Britain national teams.

He has previously played for Surbiton and Hampstead & Westminster Hockey Club.

[3] Calnan made his senior Great Britain national team debut against Belgium, on 14 June 2018.

On 18 June 2024, he was selected to represent Great Britain at the 2024 Summer Olympics.

This biographical article relating to an English field hockey figure is a stub.