| Name | Functions  | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Jason Ions | Designer | 2002 | 1 | |||
| Kisaku Ito | Designer | 1928 - 1950 | 5 | |||
| V. Izenberg | Designer | 1940 | 1 | |||
| Neil Irish | Designer | 1999 | 30 | |||
| Milad Ishak | Designer | 1978 | 1 | |||
| Sheila Ingham | Designer | 2001 | 1 | |||
| Yoko Isonuma | Designer | 2008 | 1 | |||
| Yasuhiro Ishii | Designer | 1967 | 1 | |||
| Lili Izsák | Designer | 2012 | 1 | |||
| John Iacovelli | Designer | 2000 - 2010 | 3 | |||
| Masako Ito | Designer | 2006 - 2010 | 18 | |||
| Kei Ishihara | Designer | 2009 | 1 | |||
| Miho Ishii | Designer | 2016 | 1 | |||
| Tomoyuki Ikeda | Designer | 2010 | 1 | |||
| Kim Il-joon | Designer | 2012 | 1 | |||
| Diana Ioan Popov | Designer | 1972 | 1 | |||
| L. Ivo | Designer | 1956 - 1957 | 3 | |||
| Toshikazu Ito | Designer | 1953 | 1 | |||
| Karl Ingelius | Designer | 1941 | 1 | |||
| Ramón Ivars | Designer | 1982 | 1 | |||
| Olav Ile | Designer | 1968 | 1 | |||
| Albert Ihde | Director | 1996 | 1 | |||
| Georg Immelmann | Director | 1963 - 1977 | 3 | |||
| Shojun Inaoka | Director | 1984 - 1997 | 5 | |||
| Dimitris Ioannou | Director | 2006 | 1 | |||
| Polly Irvin | Director | 1992 | 3 | |||
| Tsutomu Imano | Director | 1991 | 1 | |||
| Andreas Ingenhaag | Director | 2010 | 6 | |||
| Rudolf Inemann | Director | 1899 | 1 | |||
| teatrets intendant | Director | 1920 | 1 | |||
| Mihailo Isajlović | Director | 1921 - 1923 | 2 | |||
| Pavel Ivanovski | Director | 1911 - 1926 | 2 | |||
| Jenő Ivánfi | Director | 1914 | 1 | |||
| Bojko Iliev | Director | 2001 | 1 | |||
| Søren Iversen | Director | 1988 - 1993 | 2 | |||
| Eric Inman | Director | 2012 | 1 | |||
| Donald W. Ilko | Director | 1986 | 1 | |||
| Rainer Iwersen | Director | 1980 | 1 | |||
| Saburo Izumino | Director | 1966 | 1 | |||
| Cristian Ioan | Director | 2005 | 1 | |||
| Brian Ingram | Director | 2006 | 1 | |||
| Udoka Ihentuge Chisimdi | Director | 2002 | 1 | |||