Nicolas Seiwald (born 4 May 2001) is an Austrian professional footballer who plays as a defensive midfielder for Bundesliga club RB Leipzig and the Austria national team.

[2] Seiwald began his career in 2009 with the youth academy of Red Bull Salzburg.

He made his professional debut playing for Red Bull Salzburg's feeder team, FC Liefering, against WSG Wattens on 24 May 2019.

[4] On 11 October 2022, Seiwald scored his first Champions League goal in a 1–1 away draw against Dinamo Zagreb.

[5] On 26 February 2023, Seiwald joined German side RB Leipzig for the 2023–24 season, signing a five-year contract with the club.