| Citadel Arts Centre, The | The Citadel Arts Centre | England, Saint Helens, Waterloo St | 2013-09-16 | -- | 2013 | 1 | |
| Créteil | Créteil | France, Créteil | -- | -- | | | |
| Cyber Act Théâtre | Cyber Act Théâtre | France, Paris, 5 passage de Thionville | 2005-01-11 | 2005-04-03 | 2005 | 1 | |
| Cochrane Theatre | Cochrane Theatre | England, WC1B 4AP, Southampton Row | 2009-11-05 | 2009-11-07 | 2009 | 1 | |
| City Opera House | City Opera House | United States of America, Frederick | 1904-04-19 | 1912-02-16 | 1904–1912 | 2 | |
| Castrop-Rauxel Studio | Castrop-Rauxel Studio | Germany, Castrop-Rauxel, Europaplatz | 2017-02-14 | 2017-11-29 | 2017 | 1 | |
| CC Het Bolwerk | CC Het Bolwerk (Cultuurcentrum Vilvoorde) | Belgium, 1800, Bolwerkstraat 17 | 2002-04-30 | 2002-04-30 | 2002–2007 | 2 | |
| Cenade | Cenade | Romania, Cenade | -- | -- | | | |
| Carlo Theatre | Carlo Theatre | United States of America, Blue Lake, 131 H St. | 2005-11-25 | 2006-09-09 | 2005–2006 | 3 | |
| Compania Dramatică Bulandra | Compania Dramatică Bulandra | Romania, Bucharest | 1921-04- | -- | 1921–1922 | 2 | |
| Cultuurcentrum Gildhof | Cultuurcentrum Gildhof | Belgium, Tielt, Sint-Michielstraat 9 | 1994-03-30 | -- | 1994–1998 | 3 | |
| Casa da Gávea | Casa da Gávea | Brazil, Gávea, Praça Santos Dumont, 116 | 1997-05-08 | -- | 1997 | 1 | |
| Centro Hebraico Riograndense | Centro Hebraico Riograndense | Brazil, Porto Alegre, Rua Cel Fernando Machado, 1008 | 1952-10- | -- | 1952 | 1 | |
| Croydon Repertory Theatre | Croydon Repertory Theatre | England, Croydon, London | 1932-10-17 | -- | 1932–1936 | 4 | |
| Cafè Puig | Teatre Cafè Puig | Spain, Barcelona | 1913-09-20 | -- | 1913 | 1 | |
| Company OnStage | Company OnStage | United States of America, Houston, 536 Westbury Square | 2005-01-14 | 2012-02-18 | 2005–2012 | 2 | |
| Członkowie Akademickiego Kółka Miłośników Sceny | Członkowie Akademickiego Kółka Miłośników Sceny | Poland, Cieszyn | 1906-06-29 | -- | 1906 | 1 | |
| Close Theatre Club | Close Theatre Club | Scotland, Glasgow | 1968-09-25 | 1968-10-13 | 1968 | 1 | |
| Canal 13 | Canal 13 | Mexico | 1980-04-16 | -- | 1980 | 1 | |
| Československý rozhlas Praha | Československý rozhlas Praha | Czech Republic, Prague | 1953-09-28 | 2012-10-06 | 1953–2012 | 3 | |
| Centro Cultural Nicolás Salmerón | Centro Cultural Nicolás Salmerón | Spain, Madrid, Calle Mantuano, 51 | 2017-11-20 | -- | 2017 | 1 | |
| Circolo Ricreativo Crc Antella | Circolo Ricreativo Crc Antella | Italy, Antella, Via di Pulicciano, 53, 50012 Antella FI, Italy | 2016-02-17 | -- | 2016 | 1 | |
| Carl Schurz High School | Carl Schurz High School | United States of America, Chicago, 3601 N Milwaukee Ave | 1928-03-25 | -- | 1928 | 1 | |
| Crafton-Preyer Theatre | Crafton-Preyer Theatre | United States of America, Lawrence, KS, 1530 Naismith Dr, | 2000-03-03 | 2015-11-22 | 2000–2015 | 2 | |
| Culture and Congress Centre La Poste | Culture and Congress Centre La Poste | Switzerland, Visp, La Poste-Platz 4 Visp | 2021-11-16 | 2021-11-16 | 2021 | 1 | |
| 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 | |
| Crookston town Square | Crookston town Square | United States of America, Crookston | 2019-06-07 | 2019-06-08 | 2019 | 1 | |
| Christiania Teater | Christiania Teater | Norway, Oslo, Stortingsgata 16 | 2006-08-25 | 2023-12-02 | 2006–2023 | 7 | |
| Centre d'Animation Culturelle de Paris | Centre d'Animation Culturelle de Paris | France, Paris | 1977-01-24 | -- | 1977 | 1 | |
| Cour du Lycee Saint-Joseph | Cour du Lycee Saint-Joseph | France, Avignon, 62 Rue des Lices | 2017-07-15 | 2017-07-20 | 2017 | 1 | |
| Chişinău | Chişinău | Moldova, Chişinău | -- | -- | | | |
| City School Auditorium | City School Auditorium | United States of America, Monroe | 1914-03-12 | 1914-03-12 | 1914 | 1 | |
| CC Scharpoord | CC Scharpoord (Cultuurcentrum) | Belgium, Knokke-Heist, Maxim Willemspad 1 | 2008-01-22 | -- | 2008 | 1 | |
| Compass Theatre | Compass Theatre | England, Ickenham, Middlesex, Glebe Ave, Uxbridge | 2007-02-14 | 2007-02-17 | 2007 | 1 | |
| Cultuurcentrum Belgica | Cultuurcentrum Belgica | Belgium, Dendermonde, Kerkstraat 24 | 1998-11-26 | -- | 1998 | 1 | |
| Canberra Theatre Centre | Canberra Theatre Centre | Australia, Canberra, Civic Square, London Circuit | 1970-05-14 | 2007-05-26 | 1970–2007 | 4 | |
| Centre de recherche pour le développement culturel | CRDC (Centre de recherche pour le développement culturel) | France, Nantes | 2000-01-25 | 2000-01-28 | 2000 | 1 | |
| Corinthian Theatre | Corinthian Theatre | India, Kolkata, West Bengal | 1891-12-26 | -- | 1891 | 1 | |
| Concord Main Stage | Concord Main Stage | United States of America, Concord, 1975 Diamond Blvd | 2012-07-23 | 2012-08-18 | 2012 | 1 | |
| Caja de Fósforos | La Caja de Fósforos | Venezuela | 2023-09-07 | 2023-09-10 | 2023 | 1 | |
| Chikwawa | Chikwawa | Malawi, Chikwawa | 2006-05-20 | -- | 2006 | 1 | |
| Chateau Neuf Teaterscenen | Chateau Neuf Teaterscenen | Norway, Oslo, Slemdalsveien 15 | 1987-05-06 | 2023-09-06 | 1987–2023 | 4 | |
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