Klicks will keep his managing director status in Amsterdam, while Patrick Stichelmans remains the managing director of Grey Brussels.
Before joining Grey in 2004, Klicks spent ten years working at TBWA\±±¾©Èü³µpk10 Company.
Carolyn Carter, the president and chief executive of Grey EMEA, said: "The addition of Dik's exceptional talent will deliver more added value to our clients' brands."