Jakub Niewiadomski (born 9 April 2002) is a Polish professional footballer who plays as a left-back for I liga club Pogoà  Grodzisk Mazowiecki.
Jakub Niewiadomski signed a professional contract with Lech Poznaà  II on 1 July 2018. He was promoted to Lech Poznaà  in January 2020 and attended a training camp abroad. He made his debut for the Niewiadomski club on 2 November 2020 in the cup with a 2âÂÂ3 win over Znicz Pruszkow, replacing Dani RamÃÂrez from the reserve at the 76th minute.
Niewiadomski joined GKS JastrzÃÂbie on loan on 22 January 2021. Niewiadomski made his debut for the club on 6 March 2021, with a 2âÂÂ0 win over Korona Kielce in the league match, with a 90th minute substitute. Niewiadomski scored his first goal for the club on 5 June 2021 in the 62nd minute in a 0âÂÂ2 victory over GKS Belchatow in the league match. He returned to Lech Poznaà  on 31 December 2021.
In the summer of 2022, he transferred to Wisà Âa Kraków, one of the oldest clubs in the country, for free and signed a two-year contract. Niewiadomski made his debut for the club on 20 August 2022, with a 3âÂÂ0 win against Skra CzÃÂstochowa in the league as a substitute in the 90th minute. His final senior team appearance for Wisà Âa came on 30 September that year, playing the first 45 minutes of a 1âÂÂ0 away loss to Chojniczanka Chojnice.
For the 2023âÂÂ24 season, Niewiadomski was moved to a refounded reserve team, competing in the Lesser Poland group of the IV liga. He made 30 appearances and scored seven goals as Wisà Âa II were crowned champions and returned to the fourth division after a seven-year absence. At the conclusion of the season, Niewiadomski was released by the club.
On 10 July 2024, Niewiadomski joined II liga returnees Pogoà  Grodzisk Mazowiecki on a deal until the end of the season, with an option for a further year.
He has been capped at youth level for Poland.
Lech Poznaà  II
Wisà Âa Kraków II