Aloysius Paulus Maria van Gaal OON (Dutch pronunciation: (listen); born 8 August 1951) is a Dutch former football manager and player. At club level, he served as manager of Ajax, Barcelona, AZ Alkmaar, Bayern Munich and Manchester United, as well as having two spells in charge of the Netherlands national team. Van Gaal is one of the most decorated managers in world football, having won 20 major honours in his managerial career.
Before his career as a coach, Van Gaal played as a midfielder for Royal Antwerp, Telstar, Sparta Rotterdam, Ajax and AZ. He is also a fully qualified physical education teacher, and worked at high schools during his career as a semi-professional footballer. After a brief spell as an assistant coach at AZ, Van Gaal served as the assistant under Leo Beenhakker at Ajax and eventually took over as head coach in 1991. Under his lead, the club won three Eredivisie titles, the UEFA Cup, and the UEFA Champions League. He moved to Barcelona in 1997 and won two league titles and one Copa del Rey, but left after disagreements with the club's hierarchy.