William I Spencer
- Category : Business-Banker-Financier
- Type : MGP
- Profile : 6/2 - Role Model / Hermit
- Definition : Split - Small (3,9,50,53,57)
- Incarnation Cross : LAX Distraction 1
American banker, the No. 2 executive at the holding company for what became Citibank who helped propel the bank to the top of the industry.
He died on 9 September 2001 in Larchmont, New York.