Hutton, who has been with the agency for the past 17 years, is tasked with strengthening and expanding the business in Australia and nearby regional markets.
"Over the past three years Michelle has transformed our Sydney office into the largest and most respected communications agency in Australia," said Vivian Lines, Hill & Knowlton president and COO, Asia-Pacific.
"This new remit will challenge her to set a strategic direction for what Hill & Knowlton needs to do next, both in Australia and deepening the connections between Australia and regional markets in order to grow our business footprint."