Oona Amanda Siren (; born 23 February 2001) is a Finnish professional footballer who plays as a midfielder for Women's Super League club West Ham United and the Finland national team.
Siren started football in Tikkurilan Palloseura (TiPS) in Vantaa. She made her senior debut in the second tier Naisten Ykkönen in 2017, and after the promotion to Kansallinen Liiga, she stayed with the club until the end of 2021.
During 2022âÂÂ2023, she played with Kuopion Palloseura (KuPS), winning two Finnish championship titles, the Finnish Women's Cup in 2023, and represented the club in the UEFA Women's Champions League qualifiers.
In late December 2023, Siren signed with Norwegian Toppserien club LSK Kvinner.
On 12 September 2024, she joined Women's Super League club West Ham United.
On 29 March 2026, Siren scored her first goal for West Ham United in a Barclays WomenâÂÂs Super League match against London City Lionesses at Chigwell Construction Stadium. SirenâÂÂs longâÂÂrange effort in the 64th minute earned West Ham a 1âÂÂ1 draw, cancelling out the visitorsâ earlier lead and marking her maiden competitive goal for the club. The strike was widely praised by supporters and commentators for its quality and significance in a London derby fixture.
Siren represented Finland U17 at the 2018 FIFA U-17 Women's World Cup in Uruguay.
She made her full national team debut for Finland, in a friendly win against Slovakia on 10 April 2023.
On 19 June 2025, Siren was called up to the Finland squad for the UEFA Women's Euro 2025.
Her twin sister Emmi is also a Finnish international footballer.
KuPS
TiPS
Finland