Finn Michael Westby Caspersen Sr. (October 27, 1941 – September 7, 2009) was an American financier and philanthropist. A graduate of the Peddie School, Brown University and Harvard Law School, he was chairman and chief executive of Beneficial Corporation, one of the largest consumer finance companies in the United States. After an $8.6 billion acquisition of Beneficial by Household International in 1998, Caspersen ran Knickerbocker Management, a private financial firm overseeing the assets of trusts and foundations.