Names beginning with I
- I. A. RehmanHistorical figure
- I. I. ChundrigarPakistani politician and diplomat (1897–1960)September 15, 1897 – September 26, 1960
- I. M. PeiChinese-American architect (1917–2019)April 26, 1917 – May 16, 2019
- IUSouth Korean singer, songwriter and actressbeing archived
- Iajuddin AhmedFormer president of Bangladesh (1931-2012)February 1, 1931 – December 10, 2012
- IamblichusSyrian Neoplatonist philosopher (c. 245 – c. 325)240 CE – 320 CE
- Ian McKellenBritish actor (born 1939)b. May 25, 1939
- Ibn BattutaMoroccan explorer who traveled 120,000 km across the medieval worldFebruary 24, 1304 – 1368
- Ibn HazmAndalusian Muslim polymath, historian, jurist, philosopher and theologian (994–1064)November 7, 994 CE – August 15, 1064
- Ibn KhaldunHistoriographer and historianMay 27, 1332 – March 17, 1406
- Ibn SaudKing of Saudi Arabia from 1932 to 1953January 15, 1876 – November 9, 1953
- Ibn Sina (Avicenna)Persian polymath whose Canon of Medicine taught Europe for 600 years980 CE – June 18, 1037
- Ibn TufailArab Muslim polymath (c. 1105–1185)1110 – 1185
- Ibn al-HaythamArab physicist, mathematician and astronomer (c. 965 – c. 1040)965 CE – 1038
- Ibn-e-InshaPakistani writer (1927–1978)June 15, 1927 – January 11, 1978
- Ibn-e-SafiPakistani writer (1928–1980)July 26, 1928 – July 26, 1980
- Ibrahim Boubacar KeïtaMalian politicianJanuary 29, 1945 – January 16, 2022
- Ibrahim Iskandar of Johor17th and current Yang di-Pertuan Agong of Malaysia & Sultan of Johorb. November 22, 1958
- Ibrahim MahlabEgyptian politician; prime minister (2014-2015)b. April 12, 1949
- Ibrahim Mohamed SolihFormer President of the Maldivesb. May 4, 1964
- Ibrahim TraoréMilitary leader of Burkina Faso since 2022being archived
- Ibrahim ZauqHistorical figure
- Ibrahim al-JaafariPrime Minister of Iraq from 2005 to 2006b. March 25, 1947
- Ibrahima Kassory FofanaPrime Minister of Guinea (2018–2021)b. April 15, 1954
- Ichiro SuzukiJapanese baseball player (born 1973)being archived
- Ida B. WellsAmerican journalist and civil rights activist (1862–1931)July 16, 1862 – March 25, 1931
- Idris ElbaBritish actorbeing archived
- Idriss DébyChadian former president (1952–2021)June 18, 1952 – April 20, 2021
- Iftikhar Hussain Khan MamdotPakistani politicianAugust 31, 1906 – October 16, 1969
- Iga ŚwiątekPolish tennis player (born 2001)being archived
- Ignacio Milam TangEquatoguinean politicianb. June 20, 1940
- Ignatius of LoyolaSpanish Catholic priest and theologian (1491–1556)October 23, 1491 – July 31, 1556
- Ignaz SemmelweisHungarian physician, early pioneer of antiseptic procedures (1818–1865)July 1, 1818 – August 13, 1865
- Ignazio Cassis99th President of the Swiss Confederationbeing archived
- Igor Dodon5th President of Moldova from 2016 until 2020b. February 18, 1975
- Igor LukšićPolitician from Montenegrob. June 14, 1976
- Igor MatovičSlovak entrepreneur and politicianbeing archived
- Igor StravinskyRussian, French, and American composer (1882–1971)June 18, 1882 – April 6, 1971
- Igor SvyatoslavichPrince of ChernigovApril 2, 1151 – 1201
- Ikililou DhoinineComoros presidentb. August 14, 1962
- IlaiyaraajaIndian film composer & singerb. June 2, 1943
- Ilham AliyevPresident of Azerbaijan since 2003b. December 24, 1961
- Ilia ChavchavadzeGeorgian public figure and writer; a saint of Georgian Orthodox Church (1837-1907)October 27, 1837 – August 30, 1907
- Iliana IotovaPresident of Bulgaria since 2026, vice-president of Bulgaria from 2017 to 2026, politician and journalistb. October 24, 1964
- Ilie BolojanRomanian politician (born in 1969)b. March 17, 1969
- Ilir MetaPresident of Albania from 2017 to 2022b. March 24, 1969
- Illia PolosukhinCo-Founder - NEAR Protocol
- Ilunga Ilunkamba SylvestreCongolese politicianb. March 28, 1947
- Ilya LichtensteinHistorical figure
- Ilya RepinRussian-empire painter of Ukrainian birth (1844-1930)July 24, 1844 – September 29, 1930
- Ilya SutskeverCanadian-Israeli AI researcherbeing archived
- Imam Bakhsh PehlwanHistorical figure
- ImhotepFrench DJ, composer and record producerb. May 19, 1960
- Immanuel KantGerman philosopher of the categorical imperative and human reasonApril 22, 1724 – February 12, 1804
- Imran KhanPrime Minister of Pakistan from 2018 to 2022b. November 25, 1952
- Imru al-QaisHistorical figure
- Imtiaz AhmedPakistani cricketer (1928-2016)January 5, 1928 – December 31, 2016
- Inayat Hussain BhattiPakistani actor and singerJanuary 12, 1923 – May 31, 1999
- Inder Kumar GujralPrime Minister of India (1997-1998)December 4, 1919 – November 30, 2012
- Indira GandhiPrime Minister of India (1966-1977; 1980-1984)November 19, 1917 – October 31, 1984
- Indra NooyiIndian-American business executive and former CEO of PepsiCo (born 1955)being archived
- Indulal YagnikIndian independence activist who led Mahaguarat Movement (1892-1972)February 22, 1892 – July 17, 1972
- Inga RuginienėLithuanian politician (LSDP) and Prime Ministerb. May 24, 1981
- Ingmar BergmanSwedish director and screenwriter (1918–2007)July 14, 1918 – July 30, 2007
- Ingolfr ArnarsonViking settler of Iceland848 CE – 910 CE
- Ingrid BergmanSwedish actress (1915–1982)August 29, 1915 – August 29, 1982
- Ingrid DaubechiesBelgian physicist and mathematicianbeing archived
- Ingrida ŠimonytėPrime Minister of the Republic of Lithuaniab. November 15, 1974
- Ingvar CarlssonPrime Minister of Sweden from 1986 to 1991 and 1994 to 1996being archived
- Ingvar KampradSwedish business magnate (1926-2018)March 30, 1926 – January 27, 2018
- Intizar HussainPakistani fiction writer (1923-2016)December 7, 1923 – February 2, 2016
- Inzamam-ul-HaqFormer Pakistani cricketerbeing archived
- Ioannis SarmasGreek judge, former caretaker prime Minister of Greeceb. March 21, 1957
- Ion IliescuPresident of Romania (1990–1996; 2000–2004)being archived
- Iqbal BahuPakistani singer (1944–2012)September 4, 1944 – March 24, 2012
- Iqbal BanoPakistani singer (1928-2009)August 27, 1928 – April 21, 2009
- Irakli GaribashviliPrime Minister of Georgia (2013–2015, 2021–2024)b. June 28, 1982
- Irakli KobakhidzePrime Minister of Georgia since 2024b. September 25, 1978
- Irena SendlerPolish resistance fighter and Holocaust rescuer (1910-2008)October 20, 1910 – May 12, 2008
- Irene Joliot-CurieFrench chemist and physicist (1897–1956)September 12, 1897 – March 17, 1956
- Irene of AthensEmpress of Byzantine Empire (752-803)752 CE – August 9, 803 CE
- Irfaan AliPresident of the Co-operative Republic of Guyanab. April 25, 1980
- IrneriusItalian jurist1050 – 1140
- Irrfan KhanIndian actor (1967–2020)January 7, 1967 – April 29, 2020
- Isa GambarAzerbaijani politician (born 1957)b. February 24, 1957
- Isa II of BahrainEmir of Bahrain (1961-1999)June 3, 1933 – March 6, 1999
- Isa MustafaKosovo Albanian politician (born 1951)b. May 15, 1951
- IsaacPatriarch and prophet, son of Abraham
- Isaac AsimovAmerican writer and biochemist (1920–1992)January 2, 1920 – April 6, 1992
- Isaac HerzogPresident of Israel since 2021b. September 22, 1960
- Isaac NewtonPhysicist and mathematician who formulated the laws of motion and universal gravitationDecember 25, 1642 – March 31, 1727
- Isabeau of BavariaQueen Consort of France1370 – September 24, 1435
- Isabel AllendeChilean writer (born 1942)b. August 2, 1942
- Isabella BirdBritish traveler, writer, photographer and naturalist (1831–1904)October 15, 1831 – October 8, 1904
- Isabella I of CastileQueen of the Crown of Castile, from 1474 to 1504; first queen of a dynastically-united Spain, from 1479 to 1504 (1451–1504)April 22, 1451 – November 26, 1504
- Isabella II of SpainQueen of Spain from 1833 to 1868being archived
- Isabella MacDuffScottish noblewoman, figure in the Wars of Scottish Independencec. 1201 – 1313
- Isabella d'EsteItalian noble (1474-1539)May 18, 1474 – February 13, 1539
- Isabella of FranceQueen consort of England1295 – August 22, 1358
- IsaiahRusso-British-Latvian Jewish social and political theorist, philosopher and historian of ideas (1909–1997)June 6, 1909 – November 5, 1997
- Isaias AfwerkiPresident of Eritrea since 1993b. February 2, 1946
- Isambard Kingdom BrunelBritish mechanical and civil engineer (1806-1859)April 9, 1806 – September 15, 1859
- Isao TakahataJapanese filmmaker (1935–2018)being archived
- Ishar SinghPunjabi poet1892 – 1966
- Ishfaq AhmadResearcher (ORCID 0000-0002-1124-7485)
- Ishmael KalsakauVanuatuan politicianbeing archived
- Ishwar Chandra VidyasagarPhilosopher, academic, writer, translator, entrepreneur, social reformer and philanthropist (1820-1891)September 26, 1820 – July 29, 1891
- Isidore MvoubaPrime Minister of the Republic of the Congobeing archived
- Isidore of SevilleHispano-Roman scholar, theologian and bishop (c. 560–636)560 CE – April 4, 636 CE
- Isidore the LaborerHistorical figure
- Iskander MirzaTatar revolutionary (1867-1916)December 8, 1867 – September 18, 1916
- Islahuddin SiddiquePakistani field hockey playerb. January 10, 1948
- Islam Karimov1st President of the Republic of Uzbekistan (1938–2016)being archived
- Islam MakhachevRussian mixed martial arts fighterbeing archived
- Ismail KadareHistorical figure
- Ismail Omar GuellehPresident of Djibouti since 1999b. November 27, 1947
- Ismail Ould Bedde Ould Cheikh Sidiya15th Prime Minister of Mauritaniab. March 17, 1961
- Ismail Sabri YaakobPrime Minister of Malaysia from 2021 to 2022b. January 18, 1960
- Ismail SamaniAmir of the Samanid Empire from 892 to 907849 CE – November 24, 907 CE
- Ismail TaraPakistani actorNovember 16, 1949 – 2022
- Ismat ChughtaiIndian writer (1911-1991)August 21, 1911 – October 24, 1991
- Israel AdesanyaNew Zealander mixed martial artistbeing archived
- Issey MiyakeJapanese fashion designer (1938−2022)being archived
- Italo CalvinoItalian journalist and writer (1923-1985)October 15, 1923 – September 19, 1985
- Italo RighiCaptain Regent, head of government for San Marinob. June 14, 1959
- Ito Hirobumi1st, 5th, 7th and 10th Prime Minister of Japan (1841–1909)October 16, 1841 – October 26, 1909
- Itzhak PerlmanIsraeli-American violinist and conductor (born 1945)b. August 31, 1945
- Ivan Asen IIBulgarian ruler1190 – June 24, 1241
- Ivan FrankoHistorical figure
- Ivan GašparovičSlovak politician and lawyerbeing archived
- Ivan III of RussiaGrand Prince of Moscow and all Russia from 1462 to 1505January 22, 1440 – October 27, 1505
- Ivan PavlovRussian physiologist (1849–1936)September 14, 1849 – February 27, 1936
- Ivan TurgenevRussian writer (1818–1883)October 28, 1818 – September 3, 1883
- Ivan the TerribleTsar of all Russia from 1547 to 1584August 25, 1530 – March 18, 1584
- Ivar the BonelessKing of Jorvikb. c. 900 CE
- Ivica DačićSerbian politician (born 1966)being archived
- Ivica Račan7th Prime Minister of Croatia (1944–2007)February 24, 1944 – April 29, 2007
- Ivo AndricHistorical figure
- Ivo JosipovićCroatian politician, third President of Croatiab. August 28, 1957
- Ivo SanaderCroatian politician, former Prime Ministerb. June 8, 1953
- Ivy Matsepe-CasaburriSouth African politician (1937-2009)being archived
- Iván Duque33rd President of Colombia 2018–2022b. August 1, 1976
- Iyothee ThassIndian activistMay 20, 1845 – 1914