Nathan Brown (born 1 March 1993) is an Italian international rugby league footballer who plays as a lock for the Manly Warringah Sea Eagles.

Brown attended well renowned rugby league school Patrician Brothers' College, Fairfield where he won MCS and state titles He was a representative junior cricketer.

He played his junior football for Farfield United, Cabramatta Two Blues, Five Dock RSL and Dundas Shamrocks, before being signed by the Wests Tigers.

[6] As Wests Tigers had exceeded their second-tier salary cap, the NRL had to grant a special dispensation for Brown to play as neither team could reach the semi-finals.

The next week, he was described as, "one of rugby league’s dirtiest players, biggest thug and throwback to the old days," after a late shot on Mitchell Moses.

[13] Brown played in all three of Italy's pool matches at the World Cup including the 46–0 demolition of the United States.

[19] Brown made a total of 15 appearances for Parramatta as the club endured a horrid season finishing last on the table and claimed its 14th wooden spoon.

[22] In Round 23 against arch rivals Canterbury-Bankstown, Brown was placed on report and sent to sin bin after hitting Canterbury player Dallin Watene-Zelezniak with an illegal shoulder charge.

With the score in Canberra's favour 12–6, Parramatta put up a bomb which was caught by Jakob Arthur, he then passed it to Brown who dropped the ball unmarked right near the try line.

[34] In round 12 of the 2023 NRL season, Brown made his club debut for the Sydney Roosters in their 24–22 loss against St. George Illawarra.

[35][36] In the Sydney Roosters round 25 NSW Cup game against Parramatta, Brown was sin binned twice during the match as the club lost 22–12.