Tymoteusz Puchacz (born 23 January 1999) is a Polish professional footballer who plays as a left-back for Azerbaijan Premier League club Sabah. Puchacz started his career with Lech Poznań. On 15 December 2017, he was loaned to I liga side Zagłębie Sosnowiec. On 31 August 2018, he was loaned to I liga side GKS Katowice. On 18 May 2021, Union Berlin signed Puchacz with a transfer fee of €3.5 million. He joined the club for the 2021–22 season. On 10 January 2022, he was loaned to Süper Lig side Trabzonspor and won the league title months later. The same year on 29 December, his loan to Super League Greece side Panathinaikos was confirmed. On 19 June 2023, Puchacz was sent to 1. FC Kaiserslautern on another loan. He recorded one goal and thirteen assists in all competitions across the 2023–24 season, as FCK finished the league season in 13th and reached the 2023–24 DFB-Pokal final. On 2 August 2024, Puchacz joined Bundesliga newcomers Holstein Kiel. On 9 January 2025, Puchacz moved to EFL League One club Plymouth Argyle on loan for the rest of the 2024–25 season with an option to buy. In the summer of 2025, Puchacz was approached by Lech Poznań and Slovan Bratislava, but rejected offers from both clubs. On 8 September, the Polish transfer window deadline day, Puchacz was scheduled to undergo a medical ahead of a loan move to GKS Katowice, but pulled out last-minute. The following day, he joined Sabah on a season-long loan. On 14 May 2026, after winning the domestic double with Sabah, Puchacz joined them on a permanent basis. Puchacz made his debut for the Poland national team on 1 June 2021, in their 1–1 friendly draw with Russia. In June 2021, Puchacz made appearances in all of Poland's fixtures at UEFA Euro 2020, as they finished last in their group and were knocked out from the group stages. On 7 June 2024, he was selected for his second international tournament after being named in the final squad for UEFA Euro 2024 in Germany. He remained benched for all three of Poland's fixtures as they failed to qualify for the knockout phase.