Ross Maxwell McEwan CBE (born 16 July 1957) is a New Zealand banker and the Chief Executive Officer and Managing Director of National Australia Bank. He was previously the chief executive officer of The Royal Bank of Scotland Group (RBS) from October 2013 to October 2019.
McEwan was educated at Hastings Boys' High School, followed by Massey University, where he completed a degree in business studies and human resources. He later earned a master's in business administration from Harvard Business School.
McEwan's first top management position was as CEO of Axa New Zealand from 1996 to 2002. He had spent the previous ten years at National Mutual New Zealand, 51% acquired by Axa in 1995. McEwan was then appointed CEO of First NZ Securities, the stockbroking arm of First NZ Capital Securities, the New Zealand affiliate of Credit Suisse Group.
In 2003 McEwan was hired as group executive for retail banking services for the Commonwealth Bank of Australia (CBA). McEwan joined RBS in August 2012 as head of retail banking.