Amsterdamsche Football Club Ajax ( Dutch: [ˈaːjɑks] ), also known as AFC Ajax , Ajax Amsterdam , or simply Ajax , is a Dutch professional football club based in Amsterdam , that plays in the Eredivisie , the top tier in Dutch football. Historically, Ajax (named after the legendary Greek hero ) is the most successful club in the Netherlands , with 36 Eredivisie titles and 20 KNVB Cups , both are records. It has continuously played in the Eredivisie since the league's inception in 1956, and along with Feyenoord and PSV Eindhoven , it is one of the country's " big three " clubs.
