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, 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.