| Casinoteatret | Casinoteatret | Denmark, Copenhagen | 1861-12-06 | 1907-05-15 | 1861–1927 | 8 | 1 |
| Chernyakhovsk | Chernyakhovsk | Russia, Chernyakhovsk | -- | -- | | | |
| Cultuurcentrum De Kern | Cultuurcentrum De Kern | Belgium, Antwerpen, Kern 18 | 2000-12-07 | 2000-12-07 | 2000–2007 | 2 | |
| cell, the | the cell | United States, New York, 338 W 23rd St New York, NY 10011 | 2015-03-02 | 2015-03-19 | 2015 | 1 | |
| Circle Theater Company | Circle Theater Company | United States, Manhattan, Broadway and 83rd street | 1973-04-15 | -- | 1973 | 1 | |
| Chur | Chur | Switzerland, Chur | 2003-01-30 | -- | 2003 | 1 | |
| Cuneo | Cuneo | Italy, Cuneo | 1934-05-01 | 1934-05-02 | 1934 | 1 | |
| Centro Cívico Teodoro Sánchez Punter | Centro Cívico Teodoro Sánchez Punter | Spain, Zaragoza, Plaza Mayor, 3 | 2014-11-27 | 2014-11-28 | 2014 | 1 | |
| Classic Theatre, The | The Classic Theatre | United States, San Antonio, 1924 Fredericksburg Rd | 2017-11-03 | 2017-11-26 | 2017 | 1 | |
| Company OnStage | Company OnStage | United States, Houston, 536 Westbury Square | 2005-01-14 | 2012-02-18 | 2005–2012 | 2 | |
| CEC - Théâtre de Yerres | CEC - Théâtre de Yerres | France, Yerres, 2 Rue Marc Sangnier | 2004-05-15 | -- | 2004 | 1 | |
| Comédie Nation | Comédie Nation | France, Paris, 77 Rue de Montreuil | -- | -- | | | |
| Carlisle Foyer, Alumni Hall, Springfield College Campus | Carlisle Foyer, Alumni Hall, Springfield College Campus | United States, Springfield, 263 Alden Street | 1963-07-16 | 1963-07-20 | 1963 | 1 | |
| Compania Mărioara Voiculescu-Bulandra | Compania Mărioara Voiculescu-Bulandra | Romania, Bucharest | 1916-01-13 | -- | 1916 | 1 | |
| Connelly Theatre | Connelly Theatre | United States, New York, 220 E 4th St | 2008-09-03 | 2008-09-20 | 2008 | 1 | |
| Chunfeng She | アトリエ春風舎 | Japan, Tokyo | 2013-10-25 | 2013-10-31 | 2013 | 1 | |
| CC de Steenoven | CC de Steenoven | Belgium, Herzele, Kerkkouter 40 | 2007-11-27 | -- | 2007 | 1 | |
| Caţa | Caţa | Romania, Caţa | -- | -- | | | |
| Centro Experimental La Casa Rodante | Centro Experimental La Casa Rodante | Chile, Santiago, Alberto Figueroa 466 | 2012-01-03 | 2012-01-31 | 2012 | 1 | |
| Casa de Artes José Gorostiza | Casa de Artes José Gorostiza | Mexico, Villahermosa, Periférico Carlos Pellicer Cámara S/N | 2005-02-05 | -- | 2005 | 1 | |
| Clark Street Playhouse | Clark Street Playhouse | United States, Arlington, 601 S Clark St | 2008-02-07 | 2008-03-09 | 2008 | 1 | |
| Curtis High School | Curtis High School | United States, Staten Island, 105 Hamilton Ave | 2006-10-03 | -- | 2006 | 1 | |
| Cowshed Theatre | Cowshed Theatre | Australia, Townsville, 101 Angus Smith Drive, James Cook University | 1995-09-21 | 1995-09-30 | 1995 | 1 | |
| Compania Mărioara Voiculescu | Compania Mărioara Voiculescu | Romania, București | 1924-12-21 | 1925-01-07 | 1924 | 1 | |
| Copley Theatre | Copley Theatre | United States, Boston, 225 Clarendon St | 1917-04-16 | -- | 1917 | 1 | |
| Chrzanów | Chrzanów | Poland, Chrzanów | -- | -- | | | |
| Chiswick Town Hall | Chiswick Town Hall | England, Chiswick, London, Heathfield Terrace, Turnham Green | 1956-06-09 | -- | 1956 | 1 | |
| Center Stage | Center Stage | United States, Baltimore, 700 N Calvert St | 1988-03-04 | 2012-10-21 | 1988–2012 | 2 | |
| Canberra Theatre Centre | Canberra Theatre Centre | Australia, Canberra, Civic Square, London Circuit | 1970-05-14 | 2007-05-26 | 1970–2007 | 4 | |
| Ciudad Real | Ciudad Real | Spain, Ciudad Real | 2010-03-25 | -- | 2010 | 1 | |
| Centralnoe televidenie | Centralnoe televidenie (Soviet Central Television) | Russia, Moscow | -- | -- | | | |
| Calumet | Calumet | United States, Calumet | 1903-11-23 | 1903-11-23 | 1903 | 1 | |
| Casino | Casino | Norway, Stjørdal | 1952-03-09 | -- | 1952–1960 | 4 | |
| Centre Socio-Culturel l’Albatros | Centre Socio-Culturel l’Albatros | France, Lingolsheim, 1 Rue du Général de Gaulle | 2000-01-22 | -- | 2000 | 1 | |
| Centro Cultural Virgen Del Carmen | Centro Cultural Virgen Del Carmen | Spain, Alicante, 03182 Torrevieja | 2021-11-21 | 2021-11-21 | 2021 | 1 | |
| Cinema Teatro Comunale | Cinema Teatro Comunale | Italy, Tione di Trento, Via Roma, 7 | 2011-11-16 | -- | 2011 | 1 | |
| Centro Dramático Nacional (CNE) | Centro Dramático Nacional (CNE) | Spain, Madrid | -- | -- | | | |
| Centre Dramatique Régional de Tours Nouvel Olympia | Centre Dramatique Régional de Tours Nouvel Olympia | France, Tours, 7 Rue de Luce | 2009-01-13 | 2017-04-29 | 2009–2017 | 2 | |
| CC De Dijk | CC De Dijk (Cultural Center) | Belgium, Brugge, Blankenbergse Steenweg 221 | 2008-01-17 | 2008-01-18 | 2008 | 1 | |
| Castello Maniace | Castello Maniace | Italy, Siracusa, Isola di Ortigia | 2007-09-23 | -- | 2007 | 1 | |
| Cannes | Cannes | France, Cannes | -- | -- | | | |
| Curtain Players Theatre | Curtain Players Theatre | United States, Galena, 5691 Harlem Rd | 2010-03-05 | 2010-03-21 | 2010 | 1 | |
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