Wood has been part of the Singapore team for the past two-and-a-half years.
His key responsibilities in his new role will involve restructuring and developing the current 11-person creative department, which also includes specialists in telemarketing and the new mobile marketing group.
Wunderman Asia-Pacific president Mike Langton said Wood, who ran his own agency in New Zealand, will be a key part the office's team for new business development.
"I joined Wunderman because the strategy and technique here are unbeatable.
They deserve to be wrapped in nothing less than truly outstanding, utterly relevant creative," said Wood.