Sebastiaan Bornauw (born 22 March 1999) is a Belgian professional footballer who plays as a centre-back for Bundesliga club VfL Wolfsburg and the Belgium national team.

Bornauw made his professional debut for Anderlecht in a 4–1 Belgian Pro League win over Kortrijk on 28 July 2018, at the age of 19 years old.

In total, he played in 24 league games and he scored one goal as a defender for Anderlecht in his debut season.

[6] On 16 July 2021, Köln announced that the club had transferred Bornauw to VfL Wolfsburg, where he signed a contract until 2026.

Bornauw debuted with the Belgium national football team in a 1–1 friendly draw with Ivory Coast on 8 October 2020.