Arts & Entertainment
* Ingrid Bergman (actress)
* Irving Berlin (composer)
* Isabella Rossellini (actress)
* Iggy Pop (musician)
* Isaac Newton (scientist, mathematician)
* Isadora Duncan (dancer)
* Imogen Cunningham (photographer)
Politics & Leadership
* Indira Gandhi (Prime Minister of India)
* Idi Amin (President of Uganda)
Literature
* Ian Fleming (author)
* Isaac Asimov (science fiction writer)
* Iris Murdoch (novelist)
* Ilya Ehrenburg (Russian writer)
Other
* Ibn Khaldun (Arab historian and philosopher)
* Igor Stravinsky (composer)
* Iroquois (Native American confederation)
This is not an exhaustive list, but it includes some of the more notable figures.