| Ibach | Speer, Florian |
| Ibert, Jacques | Rosteck, Jens |
| Ibn ’Abd Rabbihi, Abdu ’Umar Ahmad ibn Muhammad | Braune, Gabriele |
| Ibn Bagga, Abu Bakr Muhammad ibn Yahya ibn al-Sa’ig al-Tugibi al-Andalusi al-Saraqusti | Braune, Gabriele |
| Ibn Gaibi, ‘Abd al-Qadir | Siehe: ‘Abd al-Qadir ibn Gaibi |
| Ibn Haldun, Wali ad-Din ‘Abd ar-Rahman ibn Muhammad ibn Muhammad Abi Bakr Muhammad ibn al-Hasan | Braune, Gabriele |
| Ibn Hurdadbih, Abu-l-Qasim ’Ubaidallah ibn ’Abdallah | Braune, Gabriele |
| Ibn Misgah, Sa’id Abu ‘Isa | Braune, Gabriele |
| Ibn al-Munaggim, Abu Ahmad Yahya ibn ’Ali ibn Yahya ibn Abi Mansur Abu-l-Hasan | Braune, Gabriele |
| Ibn Rusd, Abu-l-Walid Muhammad ibn Ahmad ibn Muhammad ibn Rusd | Braune, Gabriele |
| Ibn Salama, al-Mufaddal ibn Salama ibn ‘Asim Abu Talib | Braune, Gabriele |
| Ibn Sana’ al-Mulk, Hibat Allah ibn Ga’far ibn Sana’ al-Mulk Abi ’Abdallah Muhammad ibn Hibat Allah al-Sa’di | Braune, Gabriele |
| Ibn Sina, ’Ali al-Husain Ibn ’Abdallah | Braune, Gabriele |
| Ibn Taimiyya, Taqi ad-Din Ahmad | Braune, Gabriele |
| Ibrahim, Abdullah | Knauer, Wolfram |
| Ichiyanagi, Toshi | SL |
| Idelsohn, Abraham Zvi | Schumacher, Rüdiger |
| Iffert, August | Büchl, Alois |
| Iglesias Villoud, Héctor | Schwartz-Kates, Deborah |
| Ihwan al-Safa’ | Braune, Gabriele |
| Ikebe, Shinichiro | Loubet, Emmanuelle |
| Ikonomov, Bojan | Kostakeva, Maria Radoslavova, Antoaneta |
| Ileborgh, Adam | Staehelin, Martin |
| Iliev, Konstantin | Kostakeva, Maria |
| Illica, Luigi | Bernardoni, Virgilio |
| Imai, Nobuko | Solare, Carlos María |
| Imbault, Jean-Jérôme | Devriès-Lesure, Anik |
| Imbert, Hugues | Jacobshagen, Arnold |
| Imbrie, Andrew | Saffle, Michael |
| Immer, Friedemann | Elste, Martin |
| Immerseel, Jos van | Elste, Martin |
| Immyns, John | SL |
| Inbal, Eliahu | Jewanski, Jörg |
| Indy, Vincent d' | Schwartz, Manuela |
| Ingarden, Roman | Vogt, Jürgen |
| Ingegneri, Marc’Antonio | Ackermann, Peter |
| Ingenhoven, Jan | Staverman, Desirée |
| Inghelbrecht, Désiré-Emile | SL |
| Inglott, William | Resing, Petra |
| Insanguine, Giacomo Antonio Francesco Paolo Michele | Dubowy, Norbert |
| Inzenga Castellanos, José | Sobrino, Ramón |
| Ioachimescu, Calin | Georgescu, Corneliu Dan |
| Ioannides, Giannes, | Zotos, Ion |
| Iorgulescu, Adrian | Sandu-Dediu, Valentina |
| Ipavec (Familie) | Blazekovic, Zdravko |
| Ippolitov-Ivanov, Michail Michajlovic | Gaub, Albrecht |
| Iradier Salaberri, Sebastián | Alonso, Celsa |
| Iranyi, Gabriel | Georgescu, Corneliu Dan |
| Ireland, Francis | Boydell, Brian + |
| Ireland, John | Heldt, Guido |
| Irgens-Jensen, Ludvig | Vollsnes, Arvid O. |
| Iriarte, Tomás Luis de | Morales-Cañadas, Esther |
| Irino, Yoshiro | Loubet, Emmanuelle |
| Isaac, Heinrich | Staehelin, Martin |
| Isaac, Mr | Marsh, Carol G. |
| Isamitt Alarcón, Carlos | SL |
| Isawa, Shuji | Goto, Nobuko |
| Iscenko, Jurij | Zin’kevyc, Olena |
| al-Isfahani, Abu-l-Farag ‘Ali ibn al-Husain ibn Muhammad ibn Ahmad ibn Muhammad ibn al Haitam | Braune, Gabriele |
| Ishii, Maki | SL |
| Isidor von Sevilla | Bernhard, Michael |
| Ismayilov, Mämmäd Saleh Cämil oglu | Dadaszadä, Zümrüd |
| Isnard (Familie) | Steinhaus, Hans |
| Isnardi, Paolo | Glowotz, Daniel |
| Ísólfsson, Páll | Podhajski, Marek |
| Isouard, Nicolas | Betzwieser, Thomas |
| Israyelyan, Martun | Sarkisyan, Svetlana |
| Istel, Edgar | Schaal, Richard |
| Istomin, Eugene | Seidle, Peter |
| Istvan, Miloslav | Kordík, Pavel |
| Istvánffy, Benedek | Farkas, Zoltán |
| Ituarte, Julio | Béhague, Gerard |
| Iturriaga, Enrique | León, Javier F. |
| Ivancic, Amandus | Siehe: Ivanschiz, Amandus |
| Ivanov, Lev Ivanovic | Souritz, Elizabeth |
| Ivanov, Nikolaj | Seedorf, Thomas |
| Ivanov-Boreckij, Michail Vladimirovic | Esipova, Margarita V. |
| Ivanovich, Cristoforo | Blazekovic, Zdravko |
| Ivanovs, Janis | Furmane, Lolita |
| Ivanschiz, Amandus | Blazekovic, Zdravko |
| Ives, Charles Edward | Rathert, Wolfgang Burkholder, J. Peter (Werkverzeichnis) Sherwood, Gayle (Werkverzeichnis) Sinclair, James B. (Werkverzeichnis) |
| Ivogün, Maria | Grotjahn, Rebecca |