| Agorà Teatro | Agorà Teatro | Switzerland, Magliaso, via fiume 4 | 2011-01-22 | 2011-04-03 | 2011 | 1 | |
| Arena del Sole | Arena del Sole | Italy, Bologna, Via dell'Indipendenza, 43-47 | 1898-07-27 | 2011-11-13 | 1898–2011 | 3 | |
| Aarhus Teater | Aarhus Teater | Denmark, Aarhus, Skolegade 9 | 1871-12-14 | 2021-10-16 | 1871–2021 | 48 | |
| Alta videregående skole | Alta videregående skole | Norway, Alta, Skoleveien 15 | 1997-11-03 | 1997-11-04 | 1997 | 1 | |
| Aesthetic Realism Foundation | Aesthetic Realism Foundation | United States of America, New York, 141 Greene Street | 2001-10-21 | -- | 2001–2009 | 2 | |
| Arbeiderforeningen | Arbeiderforeningen | Norway, Ålesund, Lorkenesgt. 2 | 1952-02-28 | 1997-11-15 | 1952–1997 | 9 | |
| Atorie shunpūsha | Atorie shunpūsha (Atelier Shunpusha) | Japan, Tokyo, 〒173-0036 Tokyo, Itabashi City, Mukaihara, 2 Chome−22−17 すぺいすしょう向原 | 2009-10-09 | 2009-10-18 | 2009 | 1 | |
| American Players Theatre | American Players Theatre | United States of America, Spring Green, 5950 Golf Course Road | 2019-08-10 | 2019-10-06 | 2019 | 1 | |
| Ashby Stage, The | The Ashby Stage | United States of America, Berkeley, 1901 Ashby Avenue | 2017-03-16 | 2017-04-16 | 2017 | 1 | |
| Å Samfunnshus | Å Samfunnshus | Norway, Jerpstad | 1959-02-04 | -- | 1959–1961 | 3 | |
| Adamstown uniting church | Adamstown uniting church | Australia, Adamstown NSW, 228 Brunker Rd | 2022-05-19 | 2022-05-22 | 2022 | 1 | |
| Academy of Music | Academy of Music | United States of America, Wilmington | 1905-09-20 | 1909-04-17 | 1905–1909 | 2 | |
| Amfiet på Kirkeheia | Amfiet på Kirkeheia | Norway, Grimstad | 1989-08-26 | 1989-08-26 | 1989 | 2 | |
| Arena Peloro | Arena Peloro | Italy, Messina | 1893-07-07 | -- | 1893 | 1 | |
| Arizona Színház | Arizona Színház | Hungary, Budapest | 1991-11-29 | -- | 1991 | 1 | |
| Åfoss skole | Åfoss skole | Norway, Skien, Eikåsvegen 10 | 2006-09-18 | -- | 2006 | 1 | |
| Alhamra Cultural Complex | Alhamra Cultural Complex | Pakistan, Lahore, The Mall | 2005-11-21 | 2005-11-22 | 2005 | 1 | |
| Anfiteatro Fenice | Anfiteatro Fenice | Croatia, Rijeka | 1897-05-25 | -- | 1897 | 1 | |
| Apo Michanis Theatro | Apo Michanis Theatro (Apo Michanis Theatre) | Greece, Athens, 13 Akadimou street | 2012-04-22 | 2014-04-13 | 2012–2024 | 3 | |
| Altonaer Stadttheater | Altonaer Stadttheater | Germany, Hamburg, Königstrasse | 1888-04-10 | 1928-06-03 | 1888–1938 | 49 | |
| Apollo Theatre | Apollo Theatre | England, London, Shaftesbury Avenue | 1928-11-04 | -- | 1928 | 1 | |
| Alte Mälzerei | Alte Mälzerei | Germany, Mosbach, Alte Bergsteige 7 | 2006-03-21 | -- | 2006 | 1 | |
| Årbakka | Årbakka | Norway, Tysnes | 2005-09-16 | -- | 2005 | 1 | |
| Arcola Theatre Studio 2 | Arcola Theatre Studio 2 | England, London, 24 Ashwin Street | -- | -- | | | |
| Állami Déryné Szinház | Állami Déryné Szinház | Hungary, Budapest | 1962-02-24 | -- | 1962 | 1 | |
| Auditorium Santa Ana | Auditorium Santa Ana | Colombia | 2024-04-15 | 2024-04-15 | 2024 | 1 | |
| Âroslavskij dramatičeskij teatr imeni F. Volkova | Âroslavskij dramatičeskij teatr imeni F. Volkova | Russia, Jaroslavl | 1893-- | -- | 1893–1960 | 6 | |
| Actors Workout Studio, The | The Actors Workout Studio | United States of America, North Hollywood, 4735 Lankershim Blvd | 2015-11-06 | -- | 2015 | 1 | |
| Austråtborgen | Austråtborgen | Norway, Austråt | 1983-06-11 | 1984-08-26 | 1983–1984 | 2 | |
| Aula des Josef-Albers-Gymnasium | Aula des Josef-Albers-Gymnasium | Germany, Bottrop, Zeppelinstraße 20 | 1999-01-25 | 1999-01-25 | 1999–2015 | 2 | |
| Alhosabir Theater | Alhosabir Theater | Egypt, Cairo | 2013-01-05 | -- | 2013 | 1 | |
| Albstadt | Albstadt | Germany, Albstadt | -- | -- | | | |
| Atchison | Atchison | United States of America, Atchison | 1910-11-04 | 1910-11-04 | 1910 | 1 | |
| ARTE | ARTE | France, Strasbourg | 2006-04-26 | 2006-04-30 | 2006–2011 | 2 | |
| Aula Nikolaus-Cusanus-Gymnasium | Aula Nikolaus-Cusanus-Gymnasium | Germany, Bergisch-Gladbach | 1980-01-09 | -- | 1980 | 1 | |
| Alliance Française | Alliance Française | France, Paris, Boulevard Raspail | 1967-09-27 | -- | 1967 | 1 | |
| Amtshaus | Amtshaus | Switzerland, Kaiserstuhl, Hauptgasse 34, | 2013-04-13 | 2013-06-30 | 2013 | 1 | |
| Amicitia | Amicitia | Netherlands, Sneek | 1989-02-15 | 1989-04-02 | 1989 | 1 | |
| Al-Mahd Yard, Betlehem | Al-Mahd Yard, Betlehem | Palestinian Territories, Betlehem | 2008-10-18 | -- | 2008 | 1 | |
| Aulaen i Verdal | Aulaen i Verdal | Norway, Verdal, Verdal | 2012-11-05 | 2020-10-26 | 2012–2022 | 3 | |
| Årvoll skole | Årvoll skole | Norway, Oslo, Bård skolemesters vei 1 | 2005-10-26 | -- | 2005 | 1 | |
| Arbeiderforeningens Teater | Arbeiderforeningens Teater | Norway, Fredrikstad | 1903-09-17 | -- | 1903–1928 | 6 | |
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