In the new role, Dudreck will be responsible for developing and implementing Leo Burnett's global multinational business strategy and operating plan and will work closely with regional management teams.
Leo Burnett Worldwide chairman and chief executive officer Tom Bernardin, whom Dudreck reports to, said: "Tom is the utmost professional and I value his insight and leadership everyday."
The agency has announced that executive vice-president and Kellogg account director John Sheehy will take over Dudreck's US account management role.
Dudreck's chief operating officer responsibilities will be absorbed by Leo Burnett US president Rich Stoddart and other members of the US management team.
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