Casual apparel giant Gap Inc on Saturday announced its chief financial officer Heidi Kunz had quit and would be replaced by Byron Pollit who like its new CEO Paul Pressler joins from the Walt Disney Co.

The California-based retailer did not give a reason for Ms Kunz's departure after three and a half years but said Mr Pollit, aged 51, was previously CFO and executive vice president for Walt Disney Parks and Resorts.

"We've worked together for many years, and I'm extremely excited to have Byron as a member of my leadership team at Gap Inc," Mr Pressler said. "Byron has exceptional strategic leadership skills as a CFO and senior corporate executive."

Commenting on Ms Kunz's resignation, he added: "Heidi led important efforts to improve processes, adequately finance our business and more tightly manage expenses and capital. I thank Heidi for her many contributions as CFO during a challenging period for the company."

Gap said Mr Pollitt will be responsible for corporate finance and strategy functions, as well as information technology. He will also join its Executive Leadership Team.