Van der Sar, who began his playing career with Ajax, returns to oversee all marketing activity for the Amsterdam-based team.
Hans Weijers, chief executive for Ajax, says: “Van der Sar had a fantastic career and also has natural leadership and therefore the potential to be our managing director in the future.”
Van der Sar, now 42 retired in 2011 after spending six years at Manchester United where he won the Champions League and four Premier League titles. He also played for Juventus and Fulham.
The retired goalkeeper joins fellow former Premier League players Marc Overmars who is Ajax’s director of football, and Dennis Bergkamp who is part of the club’s coaching set-up.