Alexander Hendrik George Rinnooy Kan (born 5 October 1949) is a Dutch politician, businessman and mathematician who served as Chairman of the Social and Economic Council from 2006 to 2012.

He has also been president of the supervisory board of EYE Film Institute Netherlands since 2008 and of Museum Boerhaave since 2018.

In 1976, he obtained a PhD in mathematics at the University of Amsterdam; he was advised by Gijsbert de Leve.

[2] Between 1996 and 2006, Rinnooy Kan was a member of the board of directors of ING Group, where he was responsible for the Asian branch.

[3] The Dutch newspaper de Volkskrant named him the most influential person in the Netherlands in 2007, 2008 and 2009.