| Author Name | Profession | Nationality |
| Iain Banks | Writer | Scottish |
| Iain Glen | Actor | Scottish |
| Ian Allison | Scientist | |
| Ian Fleming | Author | British |
| Ian Gilmour | Politician | English |
| Ian Hacking | Philosopher | Canadian |
| Ian Hamilton Finlay | Poet | Scottish |
| Ian Harding | Actor | American |
| Ian Hart | Actor | English |
| Ian Jackson | Scientist | English |
| Ian St. John | Athlete | Scottish |
| Ibrahim Babangida | Statesman | Nigerian |
| Idi Amin | Statesman | |
| Ieva Laguna | Model | Latvian |
| Igor Ivanov | Statesman | Russian |
| Ilya Ehrenburg | Writer | Ukrainian |
| Immanuel Kant | Philosopher | German |
| Imran Khan | Athlete | Pakistani |
| Imre Lakatos | Philosopher | Hungarian |
| Ina Garten | Author | American |
| Indira Gandhi | Statesman | Indian |
| Indra Devi | Celebrity | Latvian |
| Ingvar Kamprad | Businessman | Swedish |
| Ira Gershwin | Musician | American |
| Ira Glass | Journalist | American |
| Ira Glasser | Activist | American |
| Iris Dement | Musician | American |
| Iris Johansen | Author | American |
| Irvin Kershner | Director | American |
| Irving Babbitt | Critic | American |
| Irving Caesar | Composer | American |
| Irving Fisher | Economist | American |
| Irving Langmuir | Scientist | American |
| Irving Layton | Poet | Canadian |
| Irving R. Kaufman | Judge | American |
| Irwin Edman | ||
| Isaac Albeniz | Musician | Spanish |
| Isaac Babel | Journalist | Russian |
| Isaac Barrow | Mathematician | English |
| Isaac D'israeli | Writer | British |
| Isaac Hanson | Musician | American |
| Isabel Allende | Writer | Chilean |
| Isabella I | Royalty | Spanish |
| Isabelle Adjani | Actress | French |
| Isabelle Eberhardt | Explorer | English |
| Isidore Ducasse Lautreamont | Author | French |
| Isla Fisher | Actress | Australian |
| Islom Karimov | Statesman | |
| Ismail Haniyeh | Politician | Palestinian |
| Isocrates | Writer | Greek |
| Israel Kamakawiwo'ole | Musician | American |
| Italo Calvino | Journalist | Italian |
| Ivan Allen | Politician | American |
| Ivan Illich | Sociologist | American |
| Ivan Lendl | Athlete | Czechoslovakian |
| Ivica Dacic | Politician | Serbian |
| Ivy Lee | Writer | American |
| Iyad Allawi | Statesman | Iraqi |
“I believe that education is all about being excited about something. Seeing passion and enthusiasm helps push an educational message.”
“Once the Afghan people vote and they choose their President with direct, secret ballot from all over the country, there will be a lot of difference in this country and a lot of legitimate power to flow with implementation.”