Arnór Sigurðsson (born 15 May 1999) is an Icelandic professional footballer who plays as an attacking midfielder for EFL Championship club Blackburn Rovers and the Iceland national team.
2018
Arnór was described as a key player for Norrköping in the 2018 Allsvenskan season, where he played as an attacking midfielder.
On 31 August 2018, Arnór signed a five-year contract with the Russian Premier League club CSKA Moscow.
The transfer fee was reportedly set at around 40 million Swedish kronor (approximately €4 million), a club record fee received by Norrköping.
He made his debut for CSKA on 19 September 2018 in a game against Viktoria Plzeň, and became the youngest Icelandic player ever to appear in a UEFA Champions League game.
Arnór scored his first goal for CSKA on 7 November 2018 in a Champions League game against Roma.
Four days later, he scored his first Russian Premier League goal in a 2–0 victory over Zenit Saint Petersburg.
On 12 December 2018, Arnór scored a goal in a 3–0 win over Real Madrid in the Santiago Bernabéu.
Arnór made his senior debut for Iceland on 15 November 2018 in a 2018–19 UEFA Nations League A game against Belgium, as a starter.
2019
On 6 April 2019, he scored twice in a 2–0 derby victory over Spartak Moscow.
On 30 July 2021, he joined Italian Serie A club Venezia on loan for the 2021–22 season.
Before going on loan, he extended his contract with CSKA until 2024.
On 3 July 2022, Arnór suspended his contract with CSKA Moscow for the 2022–23 season, having taken advantage of the FIFA ruling relating to the Russian invasion of Ukraine.
On 14 July 2022, he returned to Norrköping until June 2023 under these regulations.
On 21 June 2023, Arnór again exercised his right to move clubs and joined Blackburn Rovers for the 2023–24 season.
On 26 December 2023, the transfer was made permanent, and Arnór signed a contract with Blackburn until June 2025.