Coleman-Smith expects to join Ogilvy early in the New Year and will report to chief executive EMEA Paul Barber.
Coleman-Smith joined C&W in 2002. He formerly spent two years at Edelman and almost nine years at Hill & Knowlton.
Coleman-Smith is the latest senior hire to join Ogilvy since Barber joined in February. Other appointments have included Philly Jones to head UK healthcare.