List of people by name: A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z
Ia - Ib - Ic - Id - Ie-If - Ig - Ih - Ii-Ik - Il - Im - In - Io - Ip-Iq - Ir - Is - It - Iu-Iv - Iw - Ix-Iz
- Isa, Ustad, architect
- Isaac I Comnenus, (died 1059), Byzantine Emperor
- Isaac II Angelus, Byzantine Emperor
- Isaac of Alexandria (Coptic Patriarch), (689-692), Coptic Pope
- Isaac, Heinrich, (c.1450-1517), composer
- Isaac (Maronite Patriarch)
- Isaac of Alexandria (Greek Patriarch), Patriarch of Alexandria
- Isaacs, Rufus , 1st Marquess of Reading, (1860-1935), British politician and Viceroy of India
- Isabella of Castile, (1451-1504)
- Isabella II of Spain, (1830-1904)
- Isamuddin, Riduan, a.k.a. Hambali
- Isham, Mark, musician
- Isherwood, Christopher, (1904-1986), English novelist
- Ishi
- Ishiguro, Kazuo, Japanese author of The Remains of the Day
- Isidore I, Patriarch, patriarch of Constantinople
- Isidore II, Patriarch, patriarch of Constantinople
- Isidore of Miletus, architect
- Isidore of Seville, (560-636), cartographer
- Isidore the Apostate, (1437-1441), Metropolitan of Moscow
- Ising, Rudolph "Rudy, (1908-1982), animator
- Islam, Afrika, US hip hop singer
- Ismay, Joseph Bruce (1862-1937), Titanic survivor
- Inönü, Mustafa Ismet, (1884-1973), president of Turkey
- Iskander, Fazil, (born 1929), poet
- Iskrac, Jozef, (1836-1900), poet
- Islam, Yusuf, (born 1948), (Cat Stevens)
- Islip, Simon, Archbishop of Canterbury
- Ismail, Raghib, athlete
- Isozaki, Arata, architect
- Israels, Joseph, painter