Finn Michael Westby Caspersen, Sr. (October 27, 1941 – September 7, 2009) was an American financier and philanthropist. A graduate of Brown University and Harvard Law School, he followed his father, Olaus Caspersen, a Norwegian immigrant to the United States, as 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.