| Channel 2 (Italy) | Channel 2 (Italy) | Italy | 1982-01-25 | -- | 1982 | 1 | |
| CC Den Horinck | CC Den Horinck | Belgium, Asse, Noorderlaan 20 | 2000-10-10 | 2008-01-09 | 2000–2008 | 2 | |
| Centre Dramatique National Besançon Franche-Comté | Centre Dramatique National Besançon Franche-Comté | France, Besançon, Avenue Edouard Droz Esplanade Jean-Luc Lagarce | 2007-01-17 | 2008-05-18 | 2007–2008 | 2 | |
| Chateau Neuf Teaterscenen | Chateau Neuf Teaterscenen | Norway, Oslo, Slemdalsveien 15 | 1987-05-06 | 2014-03-29 | 1987–2014 | 3 | |
| Center Players | Center Players | United States, Freehold, 35 South Street | 2015-07-10 | 2015-08-09 | 2015 | 1 | |
| CC Lokeren | CC Lokeren | Belgium, Lokeren, Kerkplein 5 | 1998-12-11 | 1999-10-22 | 1998–2007 | 3 | |
| Centro Cultural Vila Flor (Pequeno Auditório) | Centro Cultural Vila Flor (Pequeno Auditório) | Portugal, Guimaraes, Av. D. Afonso Henriques 701 | 2007-10-18 | 2007-10-21 | 2007–2009 | 2 | |
| Columbus | Columbus | United States, Columbus | 1903-10-19 | 1903-10-19 | 1903 | 1 | |
| Centre Dramatique National | Centre Dramatique National | France, Orléans, Boulevard Pierre Segelle | 1997-02- | 1997-01-19 | 1997 | 1 | |
| Christiania Teater | Christiania Teater | Norway, Oslo, Stortingsgata 16 | 2006-08-25 | 2013-03-21 | 2006–2013 | 6 | |
| Casinos Lille Teater | Casinos Lille Teater | Denmark, Copenhagen | 1931-03-08 | -- | 1931 | 1 | |
| Cottesloe Theatre | Cottesloe Theatre | England, London, Stage Door Avenue | 1987-05-06 | 2009-04-29 | 1987–2009 | 2 | |
| Columbia Theatre | Columbia Theatre | United States, Boston, 978 Washington Street | 1895-04-16 | 1904-01-20 | 1895–1904 | 4 | |
| Cultureel Studenten Centrum Usva | Cultureel Studenten Centrum Usva | Netherlands, Groningen, Munnekeholm 10 | 2004-10-15 | -- | 2004 | 1 | |
| Casa da Cerca – Centro de Arte Contemporânea | Casa da Cerca – Centro de Arte Contemporânea | Portugal, Almada, Rua da Cerca | 2016-07-05 | 2017-07-07 | 2016–2017 | 3 | |
| Centar za kulturu Pančeva | Centar za kulturu Pančeva (Pancevo Cultural Center) | Serbia, Pančevo, Vojvode Živojina Mišića 4 | 1995-03-30 | 1996-06-13 | 1995 | 1 | |
| Chelsea Market Theatre | Chelsea Market Theatre | United States, Houston, 4617 Montrose Blvd. | 2018-02-07 | 2018-02-25 | 2018 | 1 | |
| Connecticut | Connecticut | United States, Connecticut | 1998-- | 1998-- | 1998 | 1 | |
| Colwyn Bay Repertory Theatre | Colwyn Bay Repertory Theatre | Wales, Colwyn Bay | 1943-03-30 | -- | 1943 | 1 | |
| Charlestown Working Theater | Charlestown Working Theater | United States, Charlestown, 442 Bunker Hill St | 1988-03-18 | 1988-04-10 | 1988 | 1 | |
| Cultura Nova | Cultura Nova | Netherlands, Heerlen | 2012-08-25 | 2012-08-28 | 2012 | 1 | |
| Csongrád | Csongrád | Hungary, Csongrád | 1936-11-01 | -- | 1936 | 1 | |
| Columbia Theatre | Columbia Theatre | United States, Longview, Vandercook Way | -- | -- | | | |
| Cultuurcentrum Deurne | Cultuurcentrum Deurne | Belgium, Deurne (Antwerpen), Frans Messingstraat 36 | 1999-03-18 | 1999-10-26 | 1999 | 2 | |
| Cultureel en Congrescentrum van Sint-Pieters-Woluwe | Cultureel en Congrescentrum van Sint-Pieters-Woluwe | Belgium, St-Pieters-Woluwe, Avenue Charles Thielemans 93 | 1999-10-20 | 2007-- | 1999–2007 | 2 | |
| Cyrk na placu Łukiskim | Cyrk na placu Łukiskim | Lithuania, Vilinus | 1911-11-17 | 1911-11-21 | 1911 | 1 | |
| Casa del Marino | Casa del Marino | Spain, Palmas de Gran Canaria | 1966-02-03 | -- | 1966 | 1 | |
| Colombo | Colombo | Sri Lanka, Colombo | 1891-12-01 | -- | 1891 | 1 | |
| Chemainus | Chemainus | Canada, Chemainus | 2007-09-26 | 2007-11-03 | 2007 | 1 | |
| China National Experimental Theatre | China National Experimental Theatre | China, Beijing, Ping'anli West Street | 1996-08-01 | -- | 1996 | 1 | |
| Circa Theatre | Circa Theatre | New Zealand, Te Aro, Wellington, 1 Taranaki Street | 1995-03-10 | 2019-09-02 | 1995–2019 | 3 | |
| Cleveland Play House | Cleveland Play House | United States, Cleveland, 1901 E 13th St | 1922-02-10 | 1922-02-19 | 1922–1926 | 2 | |
| Câmpulung Moldovenesc | Câmpulung Moldovenesc | Romania, Câmpulung Moldovenesc | -- | -- | | | |
| Coye la Forêt, Centre Culturel de | Centre Culturel de Coye la Forêt | France, Coye-la-Forêt, 21 Rue d'Hérivaux | 1985-05-11 | 1997-05-24 | 1985–1997 | 3 | |
| Colonnade Theatre | Colonnade Theatre | Canada, Toronto | 1972-10-30 | -- | 1972 | 1 | |
| Court Theatre | Court Theatre | United States, Chicago, 5535 South Ellis Avenue | 1981-01-15 | 2022-03-06 | 1981–2022 | 6 | |
| Chichester Festival Theatre | Chichester Festival Theatre | England, Chichester, West Sussex, A286 | 1970-05-13 | 2016-05-21 | 1970–2016 | 3 | |
| City Lit Theater | City Lit Theater | United States, Chicago, 1020 W Bryn Mawr Ave | 2012-01-13 | 2012-02-11 | 2012 | 1 | |
| Comunale, Teatro | Teatro Comunale | Italy, Treviso, Corso del Popolo, 31 | 2018-02-23 | 2018-02-25 | 2018 | 1 | |
| Csokonai Színház Irodalmi Színpad | Csokonai Színház Irodalmi Színpad | Hungary, Debrecen, Kossuth u. 10. | 1946-11-23 | -- | 1946 | 1 | |
| Chattanooga State Humanities Auditorium | Chattanooga State Humanities Auditorium | United States, Chattanooga, 4501 Amnicola Highway | 2008-07-04 | 2008-07-13 | 2008 | 1 | |
| Clarksburg | Clarksburg | United States, Clarksburg | 1903-11-25 | 1903-11-25 | 1903 | 1 | |
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