| Cylindahallen | Cylindahallen | Sweden, Vara, Vara Torsgården | 2006-11-04 | -- | 2006 | 1 | |
| Casino | Casino | Netherlands, Den Bosch | 1956-11-19 | 1989-04-02 | 1956–1992 | 3 | |
| Center for Remembering and Sharing | Center for Remembering and Sharing | United States of America, New York, 123 4th Ave | 2006-04-14 | 2006-05-07 | 2006 | 1 | |
| Charter Chroniclers of Chronicle House, The | The Charter Chroniclers of Chronicle House | United States of America, Cleveland | 1923-04-02 | -- | 1923 | 2 | |
| Court Theatre | Court Theatre | United States of America, Chicago, 5535 South Ellis Avenue | 1981-01-15 | 2022-03-27 | 1981–2022 | 6 | |
| Cultuurcentrum Berchem | Cultuurcentrum Berchem | Belgium, Berchem, Driekoningenstraat 126 | 1995-03-29 | 1998-10-21 | 1995–1998 | 2 | |
| CC De Markthallen | CC De Markthallen | Belgium, Herk-de-Stad, Markt 2 | 2001-05-03 | 2001-05-03 | 2001 | 1 | |
| City Theatre of Independence | City Theatre of Independence | United States of America, Independence, 201 N Dodgion St | 1988-05-19 | 2003-02-02 | 1988–2003 | 2 | |
| Cultuurcentrum De Spil | Cultuurcentrum De Spil | Belgium, Roeselare, Hippoliet Spilleboutdreef 1 | 2007-11-15 | -- | 2007 | 1 | |
| CSC Repertory Theatre | CSC Repertory Theatre | United States of America, New York, 136 East 13th Street | 1974-02-14 | 1978-04-02 | 1974–1985 | 3 | |
| Centro Cultural Infanta Elena | Centro Cultural Infanta Elena | Spain, Alcantarilla, Murcia, Calle los Carros | 2010-02-26 | -- | 2010 | 1 | |
| Câmpulung Moldovenesc | Câmpulung Moldovenesc | Romania, Câmpulung Moldovenesc | -- | -- | | | |
| Chitashi bunka kaikan (Aichi) | Chitashi bunka kaikan (Aichi) (Chiryu City Cultural Hall (Aichi)) | Japan, Aichi, Maseguchi-116 Kamishigeharacho, Chiryu, Aichi 472-0026, Japan | 2010-03-11 | -- | 2010 | 1 | |
| Colegio Santiago College | Colegio Santiago College | Chile, Santiago, Avenida Los Leones | 2012-08- | -- | 2012 | 1 | |
| Cruces Community Theatre, Las | Las Cruces Community Theatre | United States of America, Las Cruces, 313 N Downtown Mall | 2018-03-09 | 2018-03-25 | 2018 | 1 | |
| Carré Sainte-Maxime, Le | Le Carré Sainte-Maxime | France, Sainte-Maxime, 107 Route du Plan de la Tour | 2014-03-07 | 2014-03-08 | 2014 | 1 | |
| Casino de Montbenon, Le | Le Casino de Montbenon | Switzerland, Lausanne, Allée Ernest-Ansermet 3 | 2008-09-10 | 2008-09-13 | 2008 | 1 | |
| Concordia College | Concordia College | United States of America, Moorhead, 901 8th St. S. | 1997-02-13 | 1997-02-16 | 1997 | 1 | |
| Clarksburg | Clarksburg | United States of America, Clarksburg | 1903-11-25 | 1903-11-25 | 1903 | 1 | |
| Chakana Entertainment Centre | Chakana Entertainment Centre | Malawi, Nkhata Bay | 2006-06-11 | -- | 2006 | 1 | |
| Centro Cultural Helénico | Centro Cultural Helénico | Mexico, Mexico City, 01020 d f, Av Revolución 1500, Campestre, Álvaro Obregón | 2006-05-19 | 2018-02-04 | 2006–2017 | 2 | |
| Colgate University Theater | Colgate University Theater | United States of America, Hamilton, 13 Oak Drive | 1981-04-22 | 1981-04-25 | 1981 | 1 | |
| Câmpia Turzii | Câmpia Turzii | Romania, Câmpia Turzii | -- | -- | | | |
| Carriage House, Western Pennsylvania Family Center, The | The Carriage House, Western Pennsylvania Family Center | United States of America, Pittsburgh, 733 North Highland Avenue | 2003-08-08 | 2003-08-24 | 2003 | 1 | |
| Carson City | Carson City | United States of America, Carson City | 1905-10-24 | -- | 1905 | 1 | |
| Celje | Celje | Slovenia, Celje | 1907-05-22 | -- | 1907 | 3 | |
| Capstone Theatre | Capstone Theatre | England, Liverpool, Shaw Street | 2013-10-07 | 2014-10-13 | 2013–2014 | 2 | |
| Chão de Oliva | Chão de Oliva | Portugal, Sintra, Rua Veiga da Cunha,20 | 2007-05-17 | 2007-06-24 | 2007 | 1 | |
| China Experimental Theatre | China Experimental Theatre | China, Shanghai | 1998-04-01 | -- | 1998–2001 | 2 | |
| Casa D'Os Dias da Água | Casa D'Os Dias da Água | Portugal, Lisbon, Rua Dona Estefânia, 175 | 2006-07-13 | 2006-07-30 | 2006 | 1 | |
| Capital Repertory Theatre | Capital Repertory Theatre | United States of America, Albany, 111 N Pearl St | 2000-02-04 | 2000-02-27 | 2000 | 1 | |
| Center for the Arts Theatre | Center for the Arts Theatre | United States of America, Platteville, WI, 755 W Main St, | 2013-10-23 | 2013-10-27 | 2013 | 1 | |
| Café Nordica | Café Nordica | Czech Republic, Prague, Zlatnická 10 | 2006-04-08 | 2006-04-08 | 2006 | 1 | |
| Charleville | Charleville | France, Charleville | 1993-- | 1994-- | 1993 | 1 | |
| Castellum Theater | Castellum Theater | Netherlands, Alphen aan Den Rijn, Rijnplein 3 | 2009-11-26 | -- | 2009 | 1 | |
| Centro Cultural de Almoradí | Centro Cultural de Almoradí | Spain, Almoradí, Plaza de San Andrés, s/n | 2005-03-16 | 2005-03-16 | 2005 | 1 | |
| Chiswick Town Hall | Chiswick Town Hall | England, Chiswick, London, Heathfield Terrace, Turnham Green | 1956-06-09 | -- | 1956 | 1 | |
| CC Heusden-Zolder | CC Heusden-Zolder | Belgium, Heusden-Zolder, Dekenstraat 40 | 1995-01-20 | -- | 1995–1998 | 2 | |
| Centro Cultural de Redondo | Centro Cultural de Redondo | Portugal, Redondo, R. das Vinhas Novas 12 | 2007-02-17 | -- | 2007 | 1 | |
| Cordoba | Cordoba | Argentina, Cordoba | -- | -- | | | |
| Cultuurcentrum Kortrijk | Cultuurcentrum Kortrijk | Belgium, Kortrijk, Schouwburgplein 14 | 2007-12-03 | -- | 2007 | 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 | |
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