
Chadwick, who will join the agency's London team, was most recently managing partner across Central Europe and Russia, and has previously worked in MindShare's Singapore and Vietnam offices.
In Singapore, he was regional director for Unilever, Pepsi and Kimberley Clark, and was described this week by Mindshare EMEA chief executive Nick Waters as a "top class talent".
Chadwick, who will report to Waters, replaces Dominic Fawcett, who left MindShare in April to become worldwide strategy director at rival agency PHD, after seven years with the company.