Mathew Croker (born 11 September 1999) is an Australian professional rugby league footballer who plays as a prop and lock for the Newcastle Knights in the NRL.

[7] In 2020, he joined the Knights' NRL squad as one of their 6 allocated development players,[8] as he graduated to the Canterbury Cup NSW team.

[9] In 2021, Croker started the year without a contract but played with Newcastle's NSW Cup squad as captain of the side.

[11] This allowed Croker to make his NRL debut for the Newcastle club against the Parramatta Eels which ended in a 40-4 defeat.

[15] Croker is currently the lead host and face of the 257 Collective podcast with fellow NRL players Kalyn Ponga and Connor Watson.