Matthew Gillett (born 12 August 1988) is an Australian former professional rugby league footballer who played as a second-row forward in the 2010s.

Gillett was born in Macksville, New South Wales, Australia and moved with his family to Bribie Island, Queensland at the age of three years.

[8] On 26 September 2010, Gillett was selected for the Prime Minister's XIII and played in the 30–18 win over Papua New Guinea in Port Moresby.

In the preliminary finals match against the Manly-Warringah Sea Eagles at the SFS, Gillett filled in at five-eighth for the retiring Broncos legend Darren Lockyer after Lockyer suffered a cheekbone injury in the 13–12 Semi Finals win against the St George Illawarra Dragons at Suncorp Stadium.

[12] On 23 May 2012, Gillett made his representative debut Queensland against New South Wales in Game 1 of the 2012 State of Origin series, playing off the interchange bench in the 18–10 win at Docklands Stadium.

Gillett got selected for the Prime Minister's XIII and played off the interchange bench in the 50–10 win over Papua New Guinea in Kokopo.

[16] On 2 May 2014, Gillett made his international debut for Australia against New Zealand in the 2014 Anzac Test, playing off the interchange bench in the 30–18 win at Sydney Football Stadium after he was originally named the 18th man but replaced club teammate Sam Thaiday to make the 17-man team.

[18] In Round 25 against the St George Illawarra Dragons, Gillet was wrongfully sin-binned by referee Ben Cummins for making a tackle while allegedly offside, when he was actually 30m onside, a blunder that could have cost the Broncos a finals berth after they had a 24–4 lead and the Dragons did a minor comeback but the Broncos were lucky to escape with a 30–22 win at Suncorp Stadium.

[35] On 13 November 2016, when the Kangaroos played against England, Gillett scored his first international try for Australia in the 36–18 win at London Olympic Stadium.

[36] Gillett played in 4 matches and scored 1 try of tournament including starting at second-row in the Kangaroos 34–8 Four Nations Final win against New Zealand at Anfield.

[38] On 5 May 2017, Gillett played for Australia in the 2017 ANZAC Test against New Zealand where he started at second-row and was awarded as the Man of the Match after toppling the tackle count with 46 during the 30–12 win at Canberra Stadium.

[43] Gillett played in 5 matches of the tournament, starting at second-row in all of them including in the World Cup Final against England in the hard-fought 6–0 victory at Suncorp Stadium.

[48] In Round 1 against the Melbourne Storm, Gillett made his return to the field from his neck injury in the Broncos 22–12 loss at AAMI Park.

"[49] Gillett would recapture his good form in the early rounds even though the Broncos did struggle to win matches, earning a recall back into the Queensland squad over Gavin Cooper for the 2019 State of Origin series.