is a Dutch association football club from the city of The Hague. The club was for a time known as FC Den Haag with ADO representing the amateur branch of the club. Despite being from one of the traditional three large Dutch cities, it has not been able to match Ajax, Feyenoord or PSV in terms of success in the Eredivisie or in European competition. There is nonetheless a big rivalry with Ajax and Feyenoord.
In 2014 ADO Den Haag was being taken over by Chinese firm United Vansen International Sports Company. United Vansen International Sports has previously been involved in taking top European teams to play in China.