| Jackson State University Department of Drama | Jackson State University Department of Drama | 2004 | 1 | |
| JamesArts Productions | JamesArts Productions | 2023 | 2 | |
| James B. Cassidy | James B. Cassidy | 1944 – 1945 | 3 | |
| Jos Repertory Theatre | Jos Repertory Theatre | 2024 – 2025 | 2 | |
| J. T. Grein's Independent Players | J. T. Grein's Independent Players | 1914 | 3 | |
| Jin Xing Dance Theatre | Jin Xing Dance Theatre | 2010 | 1 | |
| Jolla Playhouse, La | La Jolla Playhouse | 1998 – 2011 | 3 | |
| Jubileum for Jon Egil Brekke i Oslo | Jubileum for Jon Egil Brekke i Oslo | 2001 | 1 | |
| Janus Theatre Company | Janus Theatre Company | 2025 | 1 | |
| Johanne Dybwad-Turneen | Johanne Dybwad-Turneen | 1907 | 73 | |
| Joventuts musicals | Joventuts musicals | 2023 | 2 | |
| Jewett Players | Jewett Players | 1917 | 1 | |
| Jaunajā Latviešu teātrī | Jaunajā Latviešu teātrī | 1902 | 1 | |
| J. T. Grein's Cosmopolitan Theatre | J. T. Grein's Cosmopolitan Theatre | 1930 – 1931 | 7 | |
| József Attila Színház | József Attila Színház | 1996 – 2009 | 9 | |
| Japan Actors' School Troupe | Japan Actors' School Troupe | 1937 | 1 | |
| Jewel Theatre Company | Jewel Theatre Company | 2023 | 1 | |
| Jaroslavskij dramatičeskij teatr imeni F. Volkova | Jaroslavskij dramatičeskij teatr imeni F. Volkova | 1923 | 5 | |
| Jiyu Gekijo (The Free Theatre) | Jiyu Gekijo (The Free Theatre) | 1909 | 1 | |
| Jan C. De Vos en Willem van Korlaar | Jan C. De Vos en Willem van Korlaar | 1891 | 3 | |
| Juilliard School Drama Division | Juilliard School Drama Division | 2006 – 2018 | 2 | |
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