Oskar Pietuszewski (born 20 May 2008) is a Polish professional footballer who plays as a winger for Primeira Liga club Porto and the Poland national team.
Pietuszewski spent his entire youth career in Jagiellonia Biaà Âystok's academy. On 5 July 2022, he won the under-14 championship of Poland with the Podlaskie Football Association's team. On that day, Pietuszewski scored a hat-trick in a 5âÂÂ2 victory against the Silesian FA's youth team. He was also the tournament's top scorer. On 23 August 2022, Pietuszewski scored a hat-trick during a 3âÂÂ1 CLJ U-17 victory over Cracovia.
At the age of sixteen, Pietuszewski made his debut for Jagiellonia Biaà Âystok in the UEFA Europa League play-off round, a 3âÂÂ0 away loss to AFC Ajax on 29 August 2024. On 1 December 2024, Pietuszewski made his Ekstraklasa debut in a 1âÂÂ1 draw against Pogoà  Szczecin, he substituted Darko Churlinov in the 80th minute. Six months later, on 4 May 2025, he scored his premiere goal for Jagiellonia during a 1âÂÂ1 draw against Górnik Zabrze.
On 7 January 2026, Pietuszewski signed a three-year contract with Primeira Liga club Porto, where he joined fellow countrymen Jan Bednarek and Jakub Kiwior. The Portuguese side paid a reported â¬8 million fee, which could rise to â¬10 million with add-ons, and his release clause was set at â¬60 million. He made his debut on 18 January, coming on as a substitute and winning a penalty in a 1âÂÂ0 league victory away at Vitória Guimarães. On 27 February, Pietuszewski scored his first goal for the club in the 13th second of a 3âÂÂ1 home win over Arouca. By doing so, he became the youngest ever foreigner to score for Porto, scored the fastest ever goal in Estádio do Dragão's history, and equalled Ljubinko DruloviÃÂ's record for the fastest goal scored for Porto.
In August 2022, Pietuszewski was called-up to the Poland national under-15 team. He also featured for the Poland under-17s, where he made his debut in a 7âÂÂ2 victory over Wales on 20 August 2023. He scored his first goal for Poland U17 team on 3 October, in the 27th minute of a 2âÂÂ1 victory over Sweden. Overall, he played 15 matches for the team, scoring four goals.
Pietuszewski made his Poland U21 debut on 5 September 2025 as a 63rd-minute substitute, and scored the final goal of a 3âÂÂ0 win over North Macedonia.
He was first called-up to the Poland national team in March 2026 for the 2026 FIFA World Cup qualification play-offs. He made a debut on 26 March 2026 in a 2âÂÂ1 semifinal win against Albania, coming on for the second half of the match.
Jagiellonia Biaà Âystok
Individual