Aster Jan D. Vranckx (born 4 October 2002) is a Belgian professional footballer who plays as a midfielder for Bundesliga club VfL Wolfsburg and the Belgium national team.

On 3 December 2018, Vranckx signed his first professional contract with KV Mechelen.

[3] Vranckx made his debut for Mechelen in the 2019 Belgian Super Cup, in a 3–0 loss to Genk.

[4] Vranckx announced on 9 December 2020 that he chose to play for VfL Wolfsburg after the ongoing season.

[5] On 1 September 2022, Vranckx moved to Italy and joined Serie A club AC Milan on a season-long loan, with an option to buy.