| Batogu | Batogu | Romania, Batogu | -- | -- | | | |
| Beclean | Beclean | Romania, Beclean | -- | -- | | | |
| Beiuş | Beiuş | Romania, Beiuş | -- | -- | | | |
| Bistriţa | Bistriţa | Romania, Bistriţa | 1924-06-09 | -- | 1924 | 1 | |
| Blaj | Blaj | Romania, Blaj | -- | -- | | | |
| Borolea | Borolea | Romania, Borolea | -- | -- | | | |
| Botoşani | Botoşani | Romania, Botoşani | 1900-- | -- | 1900–1908 | 5 | |
| Brăești | Brăești | Romania, Brăești | -- | -- | | | |
| Brăila | Brăila | Romania, Brăila | 1908-02- | -- | 1908–1929 | 2 | |
| Brașov | Brașov | Romania, Brașov | 1925-06-17 | 1927-06-02 | 1925–1938 | 6 | |
| Bratca | Bratca | Romania, Bratca | -- | -- | | | |
| Breaza | Breaza | Romania, Breaza | -- | -- | | | |
| Broşteni | Broşteni | Romania, Broşteni | -- | -- | | | |
| Bucharest | Bucharest | Romania, Bucharest | 1894-04- | 2015-10-09 | 1894–2015 | 10 | |
| Biserica Lutherana | Biserica Lutherana | Romania, Bucharest | 2005-02-23 | 2005-03-02 | 2005 | 1 | |
| Buftea | Buftea | Romania, Buftea | -- | -- | | | |
| Buzău | Buzău | Romania, Buzău | 1908-02- | -- | 1908 | 1 | |
| Babeş-Bolyai Tudományegyetem Színház és Televízió Kar | Babeş-Bolyai Tudományegyetem Színház és Televízió Kar | Romania, Cluj-Napoca, M. Kogălniceanu 4. | 2006-05-05 | -- | 2006 | 1 | |
| Bijsk dramatičeski teatr | Bijsk dramatičeski teatr | Russia, Bijsk | 1956-01- | -- | 1956 | 1 | |
| Bolshoi theatre | Большой театр (Bolshoi theatre) | Russia, Moscow, Theatre Square 1 | 2019-07-24 | 2019-10-03 | 2019–2022 | 3 | |
| Barentsfestivalen Murmansk | Barentsfestivalen Murmansk | Russia, Murmansk, ул. Челюскинцев, 2А | 2011-09-11 | -- | 2011 | 1 | |
| Bolshoi Theatre | Bolshoi Theatre (Big Theatre) | Russia, St Petersburg | 1884-02-08 | -- | 1884 | 1 | |
| Bolshoi Drama Theater | Bolshoi Drama Theater (Bol'šoj Dramatičeskij Teatr) | Russia, St. Petersburg, Fontanka Embankment, 65 | 2008-04-20 | -- | 2008–2022 | 2 | |
| Baškirskij teatr drami | Baškirskij teatr drami | Russia, Ufa | 1977-11-11 | -- | 1977 | 1 | |
| Beacon Arts Centre | Beacon Arts Centre | Scotland, Greenock, Custom House Quay | 2021-10-09 | -- | 2021 | 1 | |
| Brunton Theatre | Brunton Theatre | Scotland, Musselburgh, Ladywell Way | 2004-05-27 | 2011-06-25 | 2004–2014 | 4 | |
| Bela Crkva | Bela Crkva | Serbia | 1903-05-13 | -- | 1903 | 1 | |
| Bačka Topola | Bačka Topola | Serbia | 1945-11-18 | -- | 1945 | 1 | |
| Beogradsko dramsko pozorište | Beogradsko dramsko pozorište (The Belgrade Drama Theater) | Serbia, Belgrade, Mileševska 64a | 1968-06-02 | -- | 1968–2016 | 2 | |
| Bitef teatar | Bitef teatar | Serbia, Belgrade, Skver Mire Trailović 1 | 1978-- | -- | 1978–2008 | 2 | |
| Banská Bystrica | Banská Bystrica | Slovak Republic, Banská Bystrica | 1890-11-19 | -- | 1890–1912 | 2 | |
| Bratislava | Bratislava | Slovak Republic, Bratislava | 1891-02-03 | 2008-05-17 | 1891–2006 | 14 | |
| Bytča | Bytča | Slovak Republic, Bytča | 1913-01-29 | -- | 1913 | 1 | |
| Baxter Studio | Baxter Studio | South Africa, Rondebosch, Cape Town, Main Road | 1995-05-31 | 1995-07-01 | 1995 | 1 | |
| Barcelona | Barcelona | Spain, Barcelona | 1898-- | 1993-09-11 | 1898–2006 | 7 | |
| Biblioteca de Catalunya | Biblioteca de Catalunya | Spain, Barcelona, Carrer de l'Hospital, 56 | 2008-02-07 | 2008-03-09 | 2008 | 1 | |
| Bilbao | Bilbao | Spain, Bilbao | 2006-02-02 | -- | 2006 | 2 | |
| Búger | Búger | Spain, Búger | 2006-04-30 | -- | 2006 | 1 | |
| Bishop's College Auditorium | Bishop's College Auditorium | Sri Lanka, Colombo, Boyd Pl | 2005-05-20 | -- | 2005 | 1 | |
| Borås | Borås | Sweden | 1936-10-10 | -- | 1936 | 1 | |
| Bengtsfors | Bengtsfors | Sweden, Bengtsfors | 1989-10-28 | 1989-10-28 | 1989 | 1 | |
| Bollnäs | Bollnäs | Sweden, Bollnäs | 1936-11-01 | -- | 1936 | 1 | |
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