Free Biography Index - I
- I. M. Pei
- Ian Douglas Smith
- Ian K. Paisley
- Ian Wilmut
- Iannis Xenakis
- Ibrahim Pasha
- Ibrahim ibn Sayyar al-Nazzam
- Ictinus
- Ida Minerva Tarbell
- Ida. B. Wells-Barnett
- Idi Amin Dada
- Idris I
- Ignace Jan Paderewski
- Ignatius Donnelly
- Ignaz Günther
- Ignaz Philipp Semmelweis
- Ignazio Silone
- Igor Fedorovich Stravinsky
- Igor Sikorsky
- Ikhnaton
- Il Rosso
- Ileana Ros-Lehtinen
- Ilya Grigorievich Ehrenburg
- Ilya Kabakov
- Ilyas al-Harawi
- Imamu Amiri Baraka
- Imelda Romualdez Marcos
- Imhotep
- Immanuel Kant
- Imogen Cunningham
- Imre Nagy
- Inca Garcilaso de la Vega
- Increase Mather
- Indira Gandhi
- Ingrid Bergman
- Inigo Jones
- Innocent III
- Innocent IV
- Ion Iliescu
- Ion Luca Caragiale
- Iorwith Wilber Abel
- Ira Gershwin
- Irene D. Long
- Irene Natividad
- Irene of Athens
- Iris Murdoch
- Irving Babbitt
- Irving Berlin
- Irving Fisher
- Irving Langmuir
- Irving Thalberg
- Irène Joliot-Curie
- Isaac Abravanel
- Isaac Asimov
- Isaac Backus
- Isaac Bashevis Singer
- Isaac Emmanuelovich Babel
- Isaac Loeb Peretz
- Isaac M. Singer
- Isaac Mayer Wise
- Isaac McCoy
- Isaac Mizrahi
- Isaac Pinto
- Isaac Stern
- Isaac Thomas Hecker
- Isaac ben Solomon Ashkenazi Luria
- Isabel Bishop
- Isabel Martinez de Perón
- Isabella Bird
- Isabella I
- Isabella II
- Isabella Karle
- Isabella Stewart Gardner
- Isadora Duncan
- Isaiah
- Isaiah Berlin
- Isaiah Bowman
- Isambard Kingdom Brunel
- Isamu Noguchi
- Ishi
- Isidor Isaac Rabi
- Isidor Straus
- Ismail Pasha
- Ismet Inönü
- Isocrates
- Isoroku Yamamoto
- Israel Abrahams
- Israel Putnam
- Israel Zangwill
- Issac Albéniz
- Italo Calvino
- Italo Svevo
- Itzhak Perlman
- Ivan Aleksandrovich Goncharov
- Ivan Alekseevich Bunin
- Ivan III
- Ivan IV
- Ivan Illich
- Ivan Petrovich Pavlov
- Ivan Sergeyevich Turgenev
- Ivan Stefanovich Konev
- Ivan Stepanovich Mazepa
- Ivor Armstrong Richards
- Ivy Maude Baker Priest
- Izaak Walton