| Casinoteatret | Casinoteatret | Denmark, Copenhagen, Amaliegade 10 | 1861-12-06 | 1907-05-15 | 1861–1927 | 9 | 1 |
| Centro Cultural Português | Centro Cultural Português | Brazil, Santos, R. Amador Bueno, 188 - Centro | 2022-09-15 | 2022-09-16 | 2022 | 1 | 1 |
| CC Den Horinck | CC Den Horinck | Belgium, Asse, Noorderlaan 20 | 2000-10-10 | 2008-01-09 | 2000–2008 | 2 | |
| Centro Dramático de Ceuta / Instituto Siete Colinas | Centro Dramático de Ceuta / Instituto Siete Colinas | Spain, Ceuta, Barriada Odonnell | 2010-11-12 | 2010-11-20 | 2010 | 1 | |
| 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 | |
| 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 | |
| CASA 0101 Theater | CASA 0101 Theater | United States of America, Los Angeles, 2102 E 1st St | 2017-10-19 | 2017-11-12 | 2017 | 1 | |
| CP Beato Carlo Steeb | CP Beato Carlo Steeb | Italy, Verona, Via Augusto Caperle, 11, Verona, VR, Italy | 2022-11-18 | -- | 2022–2023 | 2 | |
| Canal House | Canal House | England, Oxford, Bulwarks Ln | 2014-03-29 | 2014-03-30 | 2014 | 1 | |
| Carré, Scène nationale - Centre d'art contemporain, Le | Le Carré, Scène nationale - Centre d'art contemporain | France, Château-Gontier-sur-Mayenne, 4 bis Rue Horeau | 2012-12-04 | -- | 2012 | 1 | |
| Christ's Hospital School | Christ's Hospital School | England, Horsham, Christ's Hospital | 2018-10-08 | -- | 2018 | 1 | |
| Câlnic | Câlnic | Romania, Câlnic | -- | -- | | | |
| City Lit Theater | City Lit Theater | United States of America, Chicago, 1020 W Bryn Mawr Ave | 2012-01-13 | 2012-02-11 | 2012 | 1 | |
| Chan Auditorium, University of Alabama | Chan Auditorium, University of Alabama | United States of America, Huntsville, University Circle | 2008-10-22 | 2008-10-26 | 2008 | 1 | |
| Criterion Theatre | Criterion Theatre | Australia, Sydney, Corner Park and Pitt Streets | 1890-07-12 | 1890-07-25 | 1890 | 2 | |
| Chattanooga State Humanities Auditorium | Chattanooga State Humanities Auditorium | United States of America, Chattanooga, 4501 Amnicola Highway | 2008-07-04 | 2008-07-13 | 2008 | 1 | |
| Curve | Curve | England, Leicester, 60 Rutland St | 2017-10-23 | 2017-10-28 | 2017 | 1 | |
| Charlottenlundhallen | Charlottenlundhallen | Norway, Trondheim, Tunvegen 21 | 1997-10-29 | 1997-10-30 | 1997 | 1 | |
| Constanţa | Constanţa | Romania, Constanţa | 1908-03- | -- | 1908 | 1 | |
| Cramphorn Theatre | Cramphorn Theatre | England, Chelmsford, Essex, Fairfield Rd | 1993-05-18 | 1993-10-23 | 1993 | 1 | |
| Courtyard Theatre | Courtyard Theatre | England, Hereford, Edgar Street | 1999-07-16 | -- | 1999–2018 | 3 | |
| Casino-Theater | Casino-Theater | Switzerland, Frauenfeld | 1980-03-05 | -- | 1980–2019 | 3 | |
| Chemnitz | Chemnitz | Germany, Chemnitz | -- | -- | | | |
| Clifford E. White Theater, The | The Clifford E. White Theater | United States of America, Flagstaff, 1115 S Knoles Dr | 2022-10-20 | 2022-10-23 | 2022 | 1 | |
| Créteil | Créteil | France, Créteil | -- | -- | | | |
| Cultuurcentrum Genk | Cultuurcentrum Genk | Belgium, Genk, C-mine 10 bus 2 | 1999-10-27 | 1999-10-27 | 1999–2007 | 2 | |
| Chicago City Theatre | Chicago City Theatre | United States of America, Chicago, 5965 North Clark Street | 1980-09-11 | 1980-10-19 | 1980 | 1 | |
| Clwyd Theatr Cymru | Clwyd Theatr Cymru | Wales, Mold, Raikes Lane | 1993-11-01 | 2015-10-18 | 1993–2014 | 4 | |
| Cochrane Theatre | Cochrane Theatre | England, WC1B 4AP, Southampton Row | 2009-11-05 | 2009-11-07 | 2009 | 1 | |
| Cremorne Theatre, Queensland Performing Arts Centre | Cremorne Theatre, Queensland Performing Arts Centre | Australia, Brisbane, Cnr Grey and Melbourne Street South Bank | 1989-07-04 | 1989-08-05 | 1989 | 1 | |
| Centre del Progrés | Centre del Progrés | Spain, Martorell | 1913-12-07 | -- | 1913 | 1 | |
| Csiky Gergely Színház | Csiky Gergely Színház | Hungary, Kaposvár, Rákóczi tér | 1996-03-08 | -- | 1996 | 1 | |
| Cultuurcentrum Deurne | Cultuurcentrum Deurne | Belgium, Deurne (Antwerpen), Frans Messingstraat 36 | 1999-03-18 | 1999-10-26 | 1999 | 2 | |
| Casa de Cultura de Tobarra | Casa de Cultura de Tobarra | Spain, Tobarra, Albacete, Av. Juan Carlos I, 16 | 1993-01-02 | -- | 1993 | 1 | |
| 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 | |
| Cohoes | Cohoes | United States of America, Cohoes | 1903-10-03 | 1903-10-03 | 1903 | 1 | |
| Centro Culturale Next | Centro Culturale Next | Italy, Cremona, via Cadolini 20, Cremona, Italy | 2018-04-13 | 2018-06-09 | 2018 | 1 | |
| Cambridge | Cambridge | United States of America, Cambridge | 1950-04-11 | 1950-04-23 | 1950–1967 | 2 | |
| Collège Leclerc | Collège Leclerc | France, Schiltigheim, 9 avenue du 23 Novembre | 2020-09-18 | -- | 2020 | 1 | |
| City Stage Theatre | City Stage Theatre | United States of America, Kansas City, 30 W Pershing Rd | 2019-08-07 | 2019-08-25 | 2019 | 1 | |
| Colonial Theatre | Colonial Theatre | United States of America, Connellsville | 1904-04-21 | 1904-04-21 | 1904 | 1 | |
| Copaken Stage | Copaken Stage | United States of America, Kansas City, KCMO | 2011-04-22 | 2011-05-22 | 2011 | 1 | |
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