David MacKellar Richwhite (born 1948) is a New Zealand investment banker and was a partner in Fay, Richwhite & Company with Sir Michael Fay.
Educated at King's College, Auckland and the University of Otago, where he graduated in 1974 with a Bachelor of Commerce degree,[1] Richwhite's personal wealth was largely acquired during the late 1980s and early 1990s. During this period he had a significant and controversial role in the structural adjustment of the New Zealand economy undertaken by the Fourth Labour Government.
Fay, Richwhite & Company was the prime focus of the "Winebox Inquiry" which dealt with, among other things, tax-avoidance arrangements in the Cook Islands. The publicity surrounding the inquiry generated considerable public ill-feeling towards Fay and Richwhite.
Based in Geneva from 1998 to 2003, Richwhite now lives with his family in London.