Jason Oost (The Hague, October 10, 1982) is a Dutch football coach and former professional football player of Indonesian origin. He played for RKC Waalwijk, Sparta, VVV-Venlo, De Graafschap, Lommel United, Excelsior, Almere City and Quick Boys successively from 2002 to 2017.
Jason Oost found his third club in the Eredivisie in VVV-Venlo in 2007. Nevertheless, this lasted only one season, because at the end of the year the Limburg club had to enter the 2008 play-offs after a seventeenth place. In this ADO Den Haag VVV referred back to the First Division. East had stated in his contract that if the Venlo club were relegated, he could leave. In the 2008/09 season, he therefore played for De Graafschap. This is where history repeated: relegation after seventeenth place and loss in the 2009 playoffs, now against RKC. East again avoided the First Division and started playing for Lommel United, in the Second Division in Belgium. In it, he finished second with the club two years in a row.