Mathew John Protheroe (born 10 October 1996)[1] is a Welsh rugby union player, who currently plays as a fullback for Hawke's Bay in New Zealand's domestic National Provincial Championship competition.

[citation needed] He made his Aviva Premiership A League debut for Gloucester against the Sale Jets in January 2015 at the age of 18.

[citation needed] On 27 May 2015, Protheroe signed his first professional contract with Gloucester Rugby, despite attraction from other top Premiership clubs.

[4] However, he left early by mutual agreement to join local rivals Bristol Rugby in the RFU Championship from the 2017–18 season.

[8] On 29 July 2024, Protheroe was named in the Hawke's Bay squad for the 2024 Bunnings NPC season.