| Complesso industriale ex-Minganti | Complesso industriale ex-Minganti | Italy, Bologna | 2001-10-18 | 2001-10-29 | 2001 | 1 | |
| Cape Breton Regional Municipality | Cape Breton Regional Municipality | Canada, Nova Scotia | 2000-01-27 | 2000-01-29 | 2000 | 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 | |
| Câmpina | Câmpina | Romania, Câmpina | -- | -- | | | |
| Christ's Hospital School | Christ's Hospital School | England, Horsham, Christ's Hospital | 2018-10-08 | -- | 2018 | 1 | |
| Centrepoint Theatre | Centrepoint Theatre | New Zealand, Palmerston North, 280 Church Street | 2004-08-28 | 2004-09-25 | 2004 | 1 | |
| Capital Theater | Capital Theater | United States, Little Rock | 1896-01-29 | 1908-10-15 | 1896–1908 | 6 | |
| Columbia Theatre | Columbia Theatre | United States, Washington | 1902-11-10 | -- | 1902 | 1 | |
| CC Den Blank | CC Den Blank (Cultuurcentrum Den Blank) | Belgium, Overijse, Begijnhof 11 | 2006-12-05 | -- | 2006 | 1 | |
| Corabia | Corabia | Romania, Corabia | -- | -- | | | |
| Československý rozhlas Brno | Československý rozhlas Brno | Czech Republic, Brno | 1956-05-10 | 2012-09-29 | 1956–1968 | 3 | |
| Cuxhaven | Cuxhaven | Germany, Cuxhaven | 2011-04-09 | -- | 2011 | 1 | |
| Centre Dramatique National | Centre Dramatique National | France, Orléans, Boulevard Pierre Segelle | 1997-02- | 1997-01-19 | 1997 | 1 | |
| Caxton theatre and Arts Centre | Caxton theatre and Arts Centre | England, Grimsby, Cleethorpe Road Great Grimsby | 1985-02-07 | -- | 1985 | 1 | |
| Cinema Teatro Odeon | Cinema Teatro Odeon | Italy, Roseto degli Abruzzi Abruzzo, V. Nazionale SNC | 2008-02-22 | -- | 2008 | 1 | |
| Colonial Theatre | Colonial Theatre | United States, Boston, 106 Boylston St | 1904-02-26 | 1904-02-27 | 1904–1946 | 6 | |
| Cultuurcentrum Brugge | Cultuurcentrum Brugge | Belgium, Brugge, Sint-Jakobsstraat 20 | 2007-12-18 | -- | 2007 | 1 | |
| Cultuurcentrum Belgica | Cultuurcentrum Belgica | Belgium, Dendermonde, Kerkstraat 24 | 1998-11-26 | -- | 1998 | 1 | |
| Chochiku | Chochiku | Japan, Tokyo | -- | -- | | | |
| 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 | |
| Curitiba | Curitiba | Brazil, Curitiba | 2005-04- | 2008-08-03 | 2005–2008 | 2 | |
| CASA 0101 Theater | CASA 0101 Theater | United States, Los Angeles, 2102 E 1st St | 2017-10-19 | 2017-11-12 | 2017 | 1 | |
| Chakana Entertainment Centre | Chakana Entertainment Centre | Malawi, Nkhata Bay | 2006-06-11 | -- | 2006 | 1 | |
| Corinthian Theatre | Corinthian Theatre | India, Kolkata, West Bengal | 1891-12-26 | -- | 1891 | 1 | |
| CC De Bosuil | CC De Bosuil | Belgium, Overijse, Witherendreef 1 | 1998-12-15 | -- | 1998 | 1 | |
| Coventry | Coventry | England, Coventry | -- | -- | | | |
| Casa de Cultura de Tobarra | Casa de Cultura de Tobarra | Spain, Tobarra, Albacete, Av. Juan Carlos I, 16 | 1993-01-02 | -- | 1993 | 1 | |
| Citadel Theatre | Citadel Theatre | Canada, Edmonton | 1972-03-22 | 1996-10-06 | 1972–1996 | 3 | |
| Cohoes | Cohoes | United States, Cohoes | 1903-10-03 | 1903-10-03 | 1903 | 1 | |
| China Experimental Theatre | China Experimental Theatre | China, Shanghai | 1998-04-01 | -- | 1998–2001 | 2 | |
| Centro Cultural de Belém (Grande Auditório) | Centro Cultural de Belém (Grande Auditório) | Portugal, Lisbon, Praça do Império | 2009-02-13 | 2009-02-14 | 2009 | 1 | |
| Chicago Norske Klubs Dramatiske Selskap | Chicago Norske Klubs Dramatiske Selskap | United States, Chicago | 1930-11-16 | 1930-11-23 | 1930 | 1 | |
| Collège Leclerc | Collège Leclerc | France, Schiltigheim, 9 avenue du 23 Novembre | 2020-09-18 | -- | 2020 | 1 | |
| Charles S. Brooks Theatre | Charles S. Brooks Theatre | United States, Cleveland | 1936-04-28 | 1962-10-13 | 1936–1962 | 2 | |
| City Stage Theatre | City Stage Theatre | United States, Kansas City, 30 W Pershing Rd | 2019-08-07 | 2019-08-25 | 2019 | 1 | |
| Catharinakapel | Catharinakapel | Netherlands, Harderwijk, Klooster 1 | 2005-01-07 | -- | 2005 | 1 | |
| Cultural Center Comfandi | Cultural Center Comfandi | Colombia, Santiago de Cali, Valle del Cauca | 2008-10-25 | -- | 2008 | 1 | |
| Crown Theatre | Crown Theatre | England, Eccles, Church Street | 1910-02-07 | 1910-02-10 | 1910 | 2 | |
| Cultuurcentrum De Borre | Cultuurcentrum De Borre | Belgium, Bierbeek, Speelpleinsstraat 10 | 1999-03-23 | 1999-03-23 | 1999–2007 | 2 | |
| Cerghid | Cerghid | Romania, Cerghid | -- | -- | | | |
| Centro Cultural Matucana 100 | Centro Cultural Matucana 100 | Chile, Santiago, Avenida Matucana 100 | 2007-01-17 | 2007-03-24 | 2007 | 1 | |
| Connecticut | Connecticut | United States, Connecticut | 1998-- | 1998-- | 1998 | 1 | |
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