The assignment will be handled out of the JWT office in Sydney. The appointment is intended to create efficiencies in strategy and work throughout the region.
Noel Magnus, the JWT Australasia chief executive, said: "This is a significant coup for our Sydney office. To be entrusted with creating the communication platforms for this genuinely iconic brand across the region is both an honour and a great responsibility."
In October, Smirnoff rolled out its new through-the-line global campaign under the theme "be there".