Quotation authors by 'I'
| Full name | Nationality | Profession |
|---|---|---|
| Abdullah Ibrahim | South African | Musician |
| Alec Issigonis | Greek | Designer |
| Aleksey Igudesman | Russian | Musician |
| Alija Izetbegovic | Bosniak | Activist |
| Allen Iverson | American | Athlete |
| Amy Irving | American | Actress |
| Ana Ivanovic | Serbian | Athlete |
| Andres Iniesta | Spanish | Athlete |
| Armando Iannucci | Scottish | Writer |
| Arthur Seyss-Inquart | Austrian | Soldier |
| Bill Irwin | American | Entertainer |
| Billy Idol | British | Musician |
| Bindi Irwin | Australian | Actress |
| Bjarke Ingels | Danish | Architect |
| Bob Iger | American | Businessman |
| Bob Inglis | American | Politician |
| Bobby Ray Inman | American | Soldier |
| Boman Irani | Indian | Actor |
| Burl Ives | American | Musician |
| Carrie Ann Inaba | American | Dancer |