Surfing apparel brand Billabong International is to lose its Australian general manager Dougall Walker, the Sydney Morning Herald has reported.

Walker, an 18-year veteran of the company, was "swapping his corporate garb for a wetsuit and surfboard," the newspaper said.

While Billabong has made no official statement about the resignation, the company did reveal to the newspaper that Walker would stay on for 12 months while a suitable replacement was sought.

Walker told the newspaper he was leaving the company to spend more time with his family.

"It's been no secret in the organisation that one day my family would take priority and I would want to kick back a bit," he said.