Kacper Potulski (born 19 October 2007) is a Polish professional footballer who plays as a centre-back for club Mainz 05.
As a youth player, Potulski joined the academy of Lechia Gdaà Âsk. In 2021, he moved to the youth academy of Polish side Legia Warsaw.
Ahead of the 2023âÂÂ24 season, Potulski joined the youth setup of German Bundesliga side Mainz 05 at the age of fifteen. He was promoted to the club's senior team in 2025, where he played in the UEFA Conference League.
Potulski is a Poland youth international. During May 2024, he played for the Poland under-17 team at the 2024 UEFA European Under-17 Championship.