| Cleveland Play House | Cleveland Play House | United States of America, Cleveland, 1901 E 13th St | 1922-02-10 | 1922-02-19 | 1922–1926 | 2 | |
| Clavering Village Hall | Clavering Village Hall | England, Saffron Walden, Hill Green, Clavering | 2001-02-22 | 2001-02-24 | 2001 | 1 | |
| Claustro de San Augustin | Claustro de San Augustin | Spain, Malaga, Calle San Agustín | 1991-07-24 | -- | 1991 | 1 | |
| Classical Theatre Company | Classical Theatre Company | United States of America, Houston, 4617 Montrose Blvd | 2016-02-03 | 2016-02-21 | 2016 | 1 | |
| Classic Theatre, The | The Classic Theatre | United States of America, San Antonio, 1924 Fredericksburg Rd | 2017-11-03 | 2017-11-26 | 2017 | 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 | |
| Clarksburg | Clarksburg | United States of America, Clarksburg | 1903-11-25 | 1903-11-25 | 1903 | 1 | |
| Clark Theatre, Dillingham Center | Clark Theatre, Dillingham Center | United States of America, Ithaca, 953 Danby Rd | 2007-10-02 | 2007-10-07 | 2007 | 1 | |
| Clark Street Playhouse | Clark Street Playhouse | United States of America, Arlington, 601 S Clark St | 2008-02-07 | 2008-03-09 | 2008 | 1 | |
| Clark Center for the Performing Arts | Clark Center for the Performing Arts | United States of America, Arroyo Grande, 487 Fair Oaks Avenue | 1972-09-30 | 1972-10-09 | 1972 | 1 | |
| Civic Theatre | Civic Theatre | England, Darlington, Parkgate | 2004-02-24 | 2004-02-28 | 2004 | 1 | |
| Civic Repertory Theatre | Civic Repertory Theatre | United States of America, New York, 107 W. 14th St. (Sixth Ave) | 1926-11-01 | -- | 1926–1928 | 3 | |
| Civic Hall | Civic Hall | England, Stratford-upon-Avon, 14 Rother Street | 2006-03-29 | 2006-04-01 | 2006 | 1 | |
| Civic Centre Bismarck | Civic Centre Bismarck | United States of America, Bismarck | 1914-05-04 | 1914-05-04 | 1914 | 1 | |
| Ciudad Real | Ciudad Real | Spain, Ciudad Real | 2010-03-25 | -- | 2010 | 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 | |
| City Stage Theatre | City Stage Theatre | United States of America, Kansas City, 30 W Pershing Rd | 2019-08-07 | 2019-08-25 | 2019 | 1 | |
| City School Auditorium | City School Auditorium | United States of America, Monroe | 1914-03-12 | 1914-03-12 | 1914 | 1 | |
| City Opera House | City Opera House | United States of America, Frederick | 1904-04-19 | 1912-02-16 | 1904–1912 | 2 | |
| City Lit Theater | City Lit Theater | United States of America, Chicago, 1020 W Bryn Mawr Ave | 2012-01-13 | 2012-02-11 | 2012 | 1 | |
| City Lights Theater Company | City Lights Theater Company | United States of America, San Jose, 529 S Second St | 2013-03-21 | 2024-02-18 | 2013–2024 | 2 | |
| City Club of New York | City Club of New York | United States of America, New York | 1907-02-26 | 1907-02-26 | 1907 | 1 | |
| Citizen's Theatre | Citizen's Theatre | Scotland, Glasgow, 119 Gorbals Street | 1970-06-03 | 2009-05-30 | 1970–2009 | 5 | |
| Citizen's Aid Building | Citizen's Aid Building | United States of America, Minneapolis, 4th Avenue South 8th Street | 1930-10-16 | -- | 1930 | 1 | |
| Citadel Theatre | Citadel Theatre | Canada, Edmonton | 1972-03-22 | 1996-10-06 | 1972–1996 | 3 | |
| Citadel Arts Centre, The | The Citadel Arts Centre | England, Saint Helens, Waterloo St | 2013-09-16 | -- | 2013 | 1 | |
| Cirkusteatern | Cirkusteatern | Sweden, Göteborg | 1914-11-20 | 1914-11-29 | 1914 | 1 | |
| Círculo Republicano | Círculo Republicano | Spain, Baracaldo | 1908-02-07 | -- | 1908 | 1 | |
| Circul de Granada | Circul de Granada | Spain, Gracia (Barcelona) | 1894-05-10 | 1894-05-10 | 1894 | 1 | |
| Circolo Unificato dell'Esercito Verona | Circolo Unificato dell'Esercito Verona | Italy, Verona, Corso Castelvecchio, 4, 37121 Verona VR, Italy | 2023-10-07 | 2025-01-11 | 2023–2025 | 2 | |
| Circolo Ricreativo Crc Antella | Circolo Ricreativo Crc Antella | Italy, Antella, Via di Pulicciano, 53, 50012 Antella FI, Italy | 2016-02-17 | -- | 2016 | 1 | |
| Circo Teatro Arena | Circo Teatro Arena | Argentina, Buenos Aires, Charcas 558 | 1961-- | -- | 1961 | 1 | |
| Circle Theater Company | Circle Theater Company | United States of America, Manhattan, Broadway and 83rd street | 1973-04-15 | -- | 1973 | 1 | |
| Circle in the Square Theatre | Circle in the Square Theatre | United States of America, New York, 235 West 50th St. | 1976-02-27 | 2024-06-23 | 1976–2024 | 3 | |
| Circa Theatre | Circa Theatre | New Zealand, Te Aro, Wellington, 1 Taranaki Street | 1995-03-10 | 2019-09-02 | 1995–2019 | 3 | |
| CIRCa | CIRCa | France, Auch, Allée des Arts | 2019-03-22 | -- | 2019 | 1 | |
| Činoherní studio | Činoherní studio | Czech Republic, Ústí nad Labem, Varšavská 767 | 1984-05-28 | -- | 1984–2011 | 2 | |
| Činoherní klub | Činoherní klub | Czech Republic, Prague, Ve Smečkách 26 | 1992-03-30 | 1998-01-01 | 1992–1999 | 4 | |
| Cineteatro San Massimo | Cineteatro San Massimo | Italy, Verona, Via Brigata Aosta, 6, 37139 Verona VR, Italy | 2023-01-14 | -- | 2023–2024 | 2 | |
| Cineteatro Gavezzani | Cineteatro Gavezzani | Italy, Seriate, Via Carlo Cattaneo, 1, 24068 | 2021-10-01 | 2021-10-03 | 2021 | 1 | |
| Cineteatro Boccaleone | Cineteatro Boccaleone | Italy, Bergamo, Via Santa Bartolomea Capitanio, 9, 24125 | 2023-11-11 | -- | 2023 | 1 | |
| Cineteatro Astrolabio | Cineteatro Astrolabio | Italy, Villasanta, Via Goffredo Mameli, 8, 20852 Villasanta MB, Italy | 2023-03-31 | -- | 2023 | 1 | |
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