List of Famous people with last name I

Peroz I was the Sasanian King of Kings of Iran from 459 to 484. A son of Yazdegerd II, he disputed the rule of his elder brother and incumbent king Hormizd III, eventually seizing the throne after a two-year struggle. His reign was marked by war and famine. Early in his reign, he successfully quelled a rebellion in Caucasian Albania in the west, and put an end to the Kidarites in the east, briefly expanding Sasanian rule into Tokharistan, where he issued gold coins with his likeness at Balkh. Simultaneously, Iran was suffering from a seven-year famine. He soon clashed with the former subjects of the Kidarites, the Hephthalites, who possibly had previously helped him to gain his throne. He was defeated and captured twice by the Hephthalites and lost his recently acquired possessions.

Col. John Tayloe I was one of the richest plantation owners and businessmen in Virginia for his generation. Considered to be the chief architect of the family fortune, he was known as the "Hon. Colonel of the Old House". The Tayloe family of Richmond County, Virginia, including John Tayloe I, his son, John Tayloe II, and grandson, John Tayloe III, exemplified gentry entrepreneurship diversifying business interests through vertical integration.

Kiurike I was the first king of the Kingdom of Tashir-Dzoraget. He was succeeded by his son David I Anhoghin.

Muteesa I Mukaabya Walugembe Kayiira (1837–1884) was the 30th Kabaka of the Kingdom of Buganda, from 1856 until 1884.

Johann Michael Bach was a German composer of the Baroque period. He was the brother of Johann Christoph Bach, as well as first cousin, once removed and father-in-law of Johann Sebastian Bach. He is sometimes referred to as the "Gehrener Bach" to distinguish him from the "Wuppertaler Bach", Johann Michael Bach (1745–1820).

Otto van Gelre was bishop of Utrecht from 1212 to 1215.

Gruffydd Maelor was Prince of Powys Fadog in Wales.

Pribislaw I, Lord of Parchim-Richenberg, was Lord of Parchim-Richenberg from 1238 to 1256.

Hamengkubuwono I, born Raden Mas Sujana, was the first sultan of Yogyakarta, reigning between 1755 and 1792.