| Interne Teater, Studentersamfundets | Studentersamfundets Interne Teater | Adaptation | 1994 | 1 | |
| Ibsen Bille, Irene | Irene Ibsen Bille | Adaptation | 1955 - 1964 | 2 | 1 |
| Ibrahim, George | George Ibrahim | Adaptation, Director | 2008 | 12 | |
| Ichon, Eduard | Eduard Ichon | Adaptation, Director | 1912 - 1933 | 6 | |
| Isbell, Tom | Tom Isbell | Adaptation, Director | 2020 | 2 | |
| Idrizi, Besfort | Besfort Idrizi | Assistant Director | 2013 - 2015 | 3 | |
| Ionescu, Eugenia-Gina | Eugenia-Gina Ionescu | Assistant Director | 1985 | 2 | |
| Izadipour, Saeid | Saeid Izadipour | Assistant Director | 2013 | 1 | |
| Ireland, Taylor | Taylor Ireland | Assistant Director | 2024 | 1 | |
| Ibsen, Henrik Johan | Henrik Johan Ibsen | Author, Director, Playwright, Producer | 1850 - 2024 | 25557 | 218 |
| Iskrenova, Mila | Mila Iskrenova | Choreographer | 2001 | 1 | |
| Ishida, Taneo | Taneo Ishida | Choreographer | 1984 | 1 | |
| Ito, Brenda May | Brenda May Ito | Choreographer | 2004 | 1 | |
| István, Szőke | Szőke István | Choreographer | 2008 | 2 | |
| Isaacson, Helen | Helen Isaacson | Choreographer | 2003 | 1 | |
| Inger, Johan | Johan Inger | Choreographer | 2017 - 2022 | 2 | |
| Ionescu Mihail, Marieta | Marieta Ionescu Mihail | Choreographer | 1959 | 1 | |
| Issa, Piero | Piero Issa | Choreographer | 2022 | 1 | |
| Ikonomou, Evi | Evi Ikonomou | Choreographer | 2023 | 2 | |
| Ishii, Toru | Toru Ishii | Composer | 1978 | 1 | |
| Ivanovič, Marko | Marko Ivanovič | Composer | 2004 - 2012 | 2 | |
| Iftimie, Nicu | Nicu Iftimie | Composer | 2009 - 2015 | 3 | |
| Ištvan, Miloš | Miloš Ištvan | Composer | 1986 | 1 | |
| Ikebe, Shinnichiro | Shinnichiro Ikebe | Composer | 1995 | 1 | |
| Ives, - | - Ives | Composer | 2002 | 1 | |
| Ioannidis, Agis | Agis Ioannidis | Composer | 2003 | 1 | |
| Ioan, Raluca | Raluca Ioan | Composer | 2005 | 1 | |
| Iacono, Christoph | Christoph Iacono | Composer | 2009 | 1 | |
| Iserloh, Oliver | Oliver Iserloh | Composer | 2012 | 1 | |
| Ikonomakis, Dimitris | Dimitris Ikonomakis | Composer | 2013 | 1 | |
| Inovlockij, Leonid | Leonid Inovlockij | Composer | 1999 | 1 | |
| Ireland, Greg | Greg Ireland | Composer, Musician | 2018 | 2 | |
| Ito, Genji | Genji Ito | Composer, Sound Designer | 1997 | 2 | |
| Iseri, Scott | Scott Iseri | Composer, Sound Designer | 2008 | 2 | |
| Ionescu-Galați, Ilarion | Ilarion Ionescu-Galați | Conductor | 2014 | 1 | |
| Ingebretsen, Kjell | Kjell Ingebretsen | Conductor | 1984 | 1 | |
| Innerstedt, Gabriella | Gabriella Innerstedt | Costume Designer | 2000 | 1 | |
| Ildikó, László | László Ildikó | Costume Designer | 2008 - 2010 | 4 | |
| Insull, Sigrid | Sigrid Insull | Costume Designer | 1977 | 1 | |
| Itoh, Sachiko | Sachiko Itoh | Costume Designer | 2008 | 1 | |
| Isono, Seiko | Seiko Isono | Costume Designer | 1997 | 1 | |
| Ines, Zofia de | Zofia de Ines | Costume Designer | 1997 | 1 | |
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