ADO Den Haag
Omeruo joined ADO Den Haag on an 18-month loan deal which kept him at the club until the end of the 2012–13 season. On 3 March 2012, Omeruo made his debut for ADO Den Haag against SC Heerenveen which ended in a 0–0 draw. On 19 April 2012, in a game against FC Groningen Omeruo scored his first goal for ADO Den Haag.