Sir Winfried Franz Wilhen "Win" Bischoff is the former chairman of Citigroup and previously served as the interim CEO for Citigroup after Chuck Prince announced his retirement on November 4th, 2007 He was succeeded as CEO by Vikram Pandit on December 11th, 2007. Bischoff stepped down as chairman on 23 February 2009 and was replaced by Richard Parsons. He has joint British and German citizenship.He will not stand for reelection to the board of Citigroup.
Bischoff was knighted in 2000.
He was born in Aachen, Germany in 1941 and had an early education in Cologne and Düsseldorf. In 1955 he moved to Johannesburg where he received a Bachelor of Commerce degree at the University of the Witwatersrand in 1961.