Olivier Aertssen (born 7 August 2004) is a Dutch professional footballer who plays for club PEC Zwolle.
Olivier Aertssen started his footballing career in amateur teams between Oirschot, Wolphaartsdijk and Kloetinge, before joining Sparta Rotterdam in 2018 and the Ajax Youth Academy a year later, as they had a partnership with the club from Rotterdam.
Starting the 2021âÂÂ22 season as a regular with the Ajax youth team, most notably in the UEFA Youth League, Aertssen made his professional debut for Jong Ajax on the 10 January 2022, starting the 2âÂÂ0 away Eerste Divisie win against Jong Utrecht as a center-back. By doing so he became the fourth youngest professional footballer from the province of Zeeland, just behind John Karelse, Erwin Nuytinck and Rick van Drongelen.
Aertssen was called up to Ajax senior squad regularly in the 2022âÂÂ23 and 2023âÂÂ24 seasons, his only competitive appearance for the team was on 11 January 2023 in a KNVB Cup game against Den Bosch.
On 26 August 2024, Aertssen signed a three-season contract with PEC Zwolle.