| Årvoll skole | Årvoll skole | Norway, Oslo, Bård skolemesters vei 1 | 2005-10-26 | -- | 2005 | 1 | |
| Arto Théâtre | Théâtre Arto | France, Avignon, 3 Rue Râteau | 2017-07-07 | 2017-07-30 | 2017 | 1 | |
| Aula Egg | Aula Egg | Switzerland, Frenkendorf, Schulanlage Egg | 1986-04-11 | 1986-04-25 | 1986 | 1 | |
| Auditorium Concordia | Auditorium Concordia | Italy, Pordenone, Via Interna, 2, 33170 | 1994-03-15 | 1994-03-16 | 1994 | 1 | |
| A uru su potto | A uru su potto (Owl Spot) | Japan, Tokyo | 2009-02-04 | 2016-11-23 | 2009–2016 | 8 | |
| Aula der Kantonsschule Hottingen | Aula der Kantonsschule Hottingen | Switzerland, Zürich, Minervastrasse 14 | 2006-02-02 | 2006-02-05 | 2006 | 1 | |
| Alchymia Theatre | Alchymia Theatre | United States of America, Chicago, IL, 4249 N. Lincoln Ave., | 2000-03-16 | 2000-04-16 | 2000 | 1 | |
| Altes Stadttheater Chemnitz | Altes Stadttheater Chemnitz | Germany, Chemnitz | 1918-02-24 | -- | 1918–1920 | 3 | |
| Allmags Festplats | Allmags Festplats | Sweden, Orust, Bohuslän | 1997-07-24 | 1997-08-03 | 1997 | 1 | |
| AINSI | AINSI | Netherlands, Maastricht, Lage Kanaaldijk 112-113 | 2009-11-10 | -- | 2009 | 1 | |
| Aurora | Aurora | United States of America, Aurora | 1903-12-16 | 1903-12-16 | 1903 | 1 | |
| Aithousa Xrysostomos | Aithousa Xrysostomos | Greece, Crete, Chania | 1912-11-02 | -- | 1912 | 1 | |
| Åndalsnes, Kinoen | Kinoen Åndalsnes (Aandalsnes) | Norway, Åndalsnes | 1956-06-01 | -- | 1956–1965 | 5 | |
| Arena Stage, Pasadena Playhouse | Arena Stage, Pasadena Playhouse | United States of America, Pasadena | 1963-03-21 | -- | 1963 | 1 | |
| Apollo teātris | Apollo teātris | Latvia, Riga, Pērnavas ielā | 1907-02-04 | -- | 1907–1908 | 3 | |
| Alba Iulia | Alba Iulia | Romania, Alba Iulia | 1911-10-03 | -- | 1911–1914 | 3 | |
| Alumnae Theatre Company | Alumnae Theatre Company | Canada, Toronto, 70 Berkeley St | 2010-11-12 | 2010-11-27 | 2010 | 1 | |
| Australia | Australia | Australia | 1958-11-05 | -- | 1958–2015 | 5 | |
| Arlequins do Teatro | Arlequins do Teatro | Brazil, São Paulo | 1988-03-21 | -- | 1988 | 1 | |
| American Theatre of Actors | American Theatre of Actors | United States of America, New York, 314 W 54th St | 2010-01-14 | 2010-01-24 | 2010 | 1 | |
| Ansbach-Theater Borkholderhaus | Ansbach-Theater Borkholderhaus | Germany, Ansbach, Promenade 29 | 2006-11-23 | -- | 2006 | 1 | |
| Aula Gymnasium Alleestrasse | Aula Gymnasium Alleestrasse | Germany, Siegburg | 1980-01-26 | -- | 1980 | 1 | |
| Arena Theatre | Arena Theatre | United States of America, Fullerton, 800 N State College Blvd, California State University | 1997-10-11 | 2002-03-24 | 1997–2002 | 2 | |
| Albany, The | The Albany | England, London, Douglas Way | 2013-09-25 | 2013-11-16 | 2013 | 1 | |
| Auditorium Christian Temple | Auditorium Christian Temple | United States of America, Muskogee | 1913-03-17 | 1913-03-17 | 1913 | 1 | |
| Argilla Teatri | Argilla Teatri | Italy, Rome, Via dell'Argilla, 18 | 2005-11-23 | 2005-11-27 | 2005 | 1 | |
| Ardhowen Theatre | Ardhowen Theatre | Northern Ireland, Enniskillen, 97 Dublin Road | 2007-03-10 | -- | 2007–2011 | 2 | |
| Albanski Teatar | National Albanian Theatre in Skopje (Албански театар во Скопје/Teatri Shqiptar) | Macedonia, Skopje, Vojdan Chernodrinski | 1970-04-04 | -- | 1970 | 1 | |
| Akademie der Künste | Akademie der Künste | Germany, Berlin, Pariser Platz 4 | 1990-10-20 | -- | 1990 | 1 | |
| Alte Steige | Alte Steige | Germany, Wertheim, Ferdinand-Hotz-Straße 1 | 2006-03-07 | -- | 2006 | 1 | |
| Ateneu Català | Ateneu Català (Clot) | Spain, Barcelona | 1915-06-20 | -- | 1915 | 1 | |
| Alliance Theatre | Alliance Theatre | United States of America, Atlanta, 1280 Peachtree St NE | 1992-03-27 | 1992-05-17 | 1992 | 1 | |
| Auditorium | Auditorium | United States of America, Minneapolis | 1908-05-30 | 1908-05-30 | 1908 | 1 | |
| Årdal | Årdal | Norway, Årdal | 1971-02-27 | -- | 1971 | 1 | |
| Alhecama Theatre | Alhecama Theatre | United States of America, Santa Barbara, 914 Santa Barbara St. | 2001-02-09 | 2011-04-24 | 2001–2011 | 2 | |
| Asker kulturhus | Asker kulturhus | Norway, Asker, Strøket 15A | 2014-09-15 | 2014-11-26 | 2014 | 1 | |
| Almeida Theatre | Almeida Theatre | England, London, Almeida St | 1984-04-21 | 2018-12-01 | 1984–2018 | 10 | |
| Altes Neues Rathaus | Altes Neues Rathaus | Germany, Moers, Kastell 9 | 2012-09-13 | -- | 2012 | 1 | |
| Acte 2 Théâtre | Acte 2 Théâtre | France, Lyon, 32bis Quai Arloing | 2015-12-10 | 2015-12-13 | 2015 | 1 | |
| Arbeidersamfundet | Arbeidersamfundet | Norway, Bodø | 1894-02-01 | -- | 1894–1928 | 3 | |
| Arcola Theatre Studio 1 | Arcola Theatre Studio 1 | England, London, 24 Ashwin St | 2008-04-01 | 2009-08-22 | 2008–2009 | 2 | |
| Aspra Spitia | Aspra Spitia | Greece | 1981-11-12 | -- | 1981 | 1 | |
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