| Copaken Stage | Copaken Stage | United States of America, Kansas City, KCMO | 2011-04-22 | 2011-05-22 | 2011 | 1 | |
| Comédie Caumartin | Comédie Caumartin | France, Paris, 25 Rue de Caumartin | 1952-12-09 | -- | 1952–1991 | 2 | |
| Colegio Médico de Los Ángeles | Colegio Médico de Los Ángeles | Chile, Los Ángeles, Calle San Martin 290, Of 11, | 2011-11- | -- | 2011 | 1 | |
| Cineteatro Astrolabio | Cineteatro Astrolabio | Italy, Villasanta, Via Goffredo Mameli, 8, 20852 Villasanta MB, Italy | 2023-03-31 | -- | 2023 | 1 | |
| Cultuurcentrum De Kern | Cultuurcentrum De Kern | Belgium, Antwerpen, Kern 18 | 2000-12-07 | 2000-12-07 | 2000–2007 | 2 | |
| Cellar Playhouse, The | The Cellar Playhouse | United States of America, San Antonio, 800 W Ashby Place | 2018-09-13 | 2018-09-16 | 2018 | 1 | |
| Chicago City Theatre | Chicago City Theatre | United States of America, Chicago, 5965 North Clark Street | 1980-09-11 | 1980-10-19 | 1980 | 1 | |
| Créteil | Créteil | France, Créteil | -- | -- | | | |
| Cripplegate Institute | Cripplegate Institute | England, London, Brackley Street | 1905-11-28 | -- | 1905 | 1 | |
| Castello Maniace | Castello Maniace | Italy, Siracusa, Isola di Ortigia | 2007-09-23 | -- | 2007 | 1 | |
| Circa Theatre | Circa Theatre | New Zealand, Te Aro, Wellington, 1 Taranaki Street | 1995-03-10 | 2019-09-02 | 1995–2019 | 3 | |
| Centre Agrícola i Social | Centre Agrícola i Social | Spain, Fortià, Carrer Sant Jordi, 12, 08733 | 2025-03-23 | -- | 2025 | 1 | |
| Capital Theatre | Capital Theatre | China, Beijing, 22 Wangfujing St, Dongcheng | 1995-10- | 1995-10- | 1995 | 1 | |
| Canada | Canada | Canada | 1952-10-16 | -- | 1952–1978 | 12 | |
| Centre Pompidou | Centre Pompidou | France, Paris, Place Georges-Pompidou | 1996-04-26 | 1996-04-27 | 1996 | 1 | |
| Classic Stage Company | Classic Stage Company | United States of America, New York, 136 E 13th St | 1981-11-08 | 2016-06-27 | 1981–2016 | 7 | |
| Cultureel Centrum Nova (CC De Poort Wetteren) | Cultureel Centrum Nova (CC De Poort Wetteren) | Belgium, Wetteren, Molenstraat 2/B | 2002-02-18 | 2002-02-19 | 2002 | 1 | |
| Crochetan, Théâtre du | Théâtre du Crochetan | Switzerland, Monthey, Avenue du Théâtre 9 | 2014-04-11 | -- | 2014 | 1 | |
| Casa de Cultura | Casa de Cultura | Spain, San Lorenzo de El Escorial, C/ Floridablanca 3. | 2005-11-26 | 2005-11-26 | 2005 | 1 | |
| Complesso industriale ex-Minganti | Complesso industriale ex-Minganti | Italy, Bologna | 2001-10-18 | 2001-10-29 | 2001 | 1 | |
| Chancellors College | Chancellors College | Malawi, Zomba, P.O. Box 280 | 2006-04-22 | 2006-04-23 | 2006 | 1 | |
| Chiryu | Chiryu | Japan, Chiryu | -- | -- | | | |
| Caddebostan Cultural Center (CKM) | Caddebostan Cultural Center (CKM) | Turkey, Istanbul, Caddebostan, Haldun Taner Sk. No:11, 34728 | 2023-11-08 | 2023-11-30 | 2023 | 1 | |
| Comédie de Valence, La | La Comédie de Valence | France, Valence, Place Charles Huguenel, 2600 | 2007-03-07 | 2023-04-27 | 2007–2023 | 5 | |
| Compania Mărioara Voiculescu | Compania Mărioara Voiculescu | Romania, București | 1924-12-21 | 1925-01-07 | 1924 | 1 | |
| Coldwater | Coldwater | United States of America, Coldwater | 1903-12-02 | 1903-12-02 | 1903 | 1 | |
| Colorado City | Colorado City | United States of America, Mitchell County | -- | -- | | | |
| Colden Center, Queens College of The City University of New York | Colden Center, Queens College of The City University of New York | United States of America, Flushing, 65-30 Kissena Boulevard | 1963-07-19 | 1963-07-27 | 1963 | 1 | |
| Canadian Stage, Berkeley Street Theatre | Canadian Stage, Berkeley Street Theatre | Canada, Toronto, Front St E | 2000-11-16 | 2016-02-07 | 2000–2016 | 2 | |
| Crow's Theatre | Crow's Theatre | Canada, Toronto, 345 Carlaw Ave, Toronto, ON M4M 2T1, Canada | 2024-09-03 | 2024-10-06 | 2024 | 1 | |
| Circo Teatro Arena | Circo Teatro Arena | Argentina, Buenos Aires, Charcas 558 | 1961-- | -- | 1961 | 1 | |
| Cenade | Cenade | Romania, Cenade | -- | -- | | | |
| Centrum Sztuki Studio im. St. I. Witkiewicza | Centrum Sztuki Studio im. St. I. Witkiewicza | Poland, Warsaw, Plac Defilad 1 | 1991-03-06 | -- | 1991 | 1 | |
| Chişinău | Chişinău | Moldova, Chişinău | -- | -- | | | |
| Centre d'Art et de Culture | Centre d'Art et de Culture | France, Meudon, 15 Boulevard des Nations Unies | 2003-02-28 | 2003-03-02 | 2003 | 1 | |
| Casa de Cultura de Sangüesa | Casa de Cultura de Sangüesa | Spain, Sangüesa, C. Alfonso el Batallador, 20 | 2009-12-12 | 2009-12-12 | 2009 | 1 | |
| Cathinka Guldberg-senteret | Cathinka Guldberg-senteret | Norway, Oslo, Lovisenberggata 7B | 2006-10-31 | -- | 2006 | 1 | |
| CC Den Blank | CC Den Blank (Cultuurcentrum Den Blank) | Belgium, Overijse, Begijnhof 11 | 2006-12-05 | -- | 2006 | 1 | |
| Centro Galego de Artes da Imaxe | Centro Galego de Artes da Imaxe | Spain, A Coruña, Rúa Durán Loriga, 10 | 2012-11-21 | -- | 2012 | 1 | |
| Cegléd | Cegléd | Hungary, Cegléd | 1907-05-22 | -- | 1907–1946 | 10 | |
| Channel 2, IRIB National TV | Channel 2, IRIB National TV | Iran, Tehran | 1999-02-15 | -- | 1999 | 1 | |
| Curhaus-Theater Davos | Curhaus-Theater Davos | Switzerland, Davos | 1905-04-12 | -- | 1905 | 1 | |
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