BNZ has appointed an internal candidate to lead the bank.
Anthony Healy will move into the chief executive's role from May 12 replacing departing boss Andrew Thorburn who has been promoted to head up BNZ parent company National Australia Bank.
Healy has been a director of BNZ Partners - BNZ's business banking arm - for four and a half years.
BNZ chairman John Waller said Healy had demonstrated the commercial leadership, vision and character required to step up and lead the company, building on a long and successful career in business and commercial banking around the world.
"The BNZ board has a strong focus on succession and leadership planning, drawing on the quality of the senior people we already have working with us.