Hungry Jack's Pty Ltd is the exclusive Australian fast food franchise of Burger King Corporation. It is a wholly owned subsidiary of Competitive Foods Australia, a privately held company owned by Jack Cowin. read more
From the Hungry Jack's Wikipedia page: When Burger King moved to expand its operations into Australia, it found that its business name was already trademarked by a takeaway food shop in Adelaide. read more
The reason Burger king is called Hungry Jack’s in Australia is due to licencing of trademarks. When they decided to branch out internationally they discovered that a small burger restaurant in Adelaide, Australia, already had trademarked that name. read more