| Børve | Børve | Norway, Børve | 1951-04-26 | -- | 1951 | 1 | |
| Burgtheater | Burgtheater | Austria, Vienna, Universitätsring 2 | 1919-03-13 | 2019-06-30 | 1919–2017 | 35 | |
| Bagley Wright Theater | Bagley Wright Theater | United States, Seattle, 155 Mercer St | 2022-04-01 | 2022-05-01 | 2022 | 1 | |
| Blau, Theater Ins | Theater Ins Blau | Netherlands, Leiden, Haagweg 6 | 2016-01-21 | -- | 2016–2017 | 3 | |
| Badmintonsenteret | Badmintonsenteret | Norway, Kristiansand, kongsgård alle | 1997-09-20 | 1997-09-25 | 1997 | 1 | |
| Barbican Theatre | Barbican Theatre | England, Plymouth, Castle St | 2016-10-11 | 2016-10-15 | 2016 | 1 | |
| Black Box Theatre | Black Box Theatre | Ireland, Galway, Dyke Road | 2009-03-04 | 2009-03-12 | 2009 | 1 | |
| Buck Creek Players | Buck Creek Players | United States, Indianapolis, 11150 Southeastern Ave | 2010-06-04 | 2010-06-13 | 2010 | 1 | |
| Batnfjordsøra, Samfunnshuset | Samfunnshuset Batnfjordsøra | Norway, Batnfjordsøra, Batnfjordsøra | 2007-03-29 | -- | 2007 | 1 | |
| Bulgarian Army Theatre | Bulgarian Army Theatre | Bulgaria, Sofia, ulitsa Georgi S. Rakovski 98 | 2006-11-01 | 2008-04-03 | 2006 | 1 | |
| Bengtsfors | Bengtsfors | Sweden, Bengtsfors | 1989-10-28 | 1989-10-28 | 1989 | 1 | |
| Bogotá | Bogotá | Colombia | 2016-03-24 | 2016-03-27 | 2016 | 1 | |
| Barcs | Barcs | Hungary, Barcs | 1925-02-23 | -- | 1925 | 1 | |
| Brăila | Brăila | Romania, Brăila | 1908-02- | -- | 1908–1929 | 2 | |
| Balestrand | Balestrand | Norway, Balestrand | 1970-02-02 | -- | 1970 | 1 | |
| Bühnen der Stadt Gera | Bühnen der Stadt Gera | Germany, Gera, Theaterplatz 1 | 1953-10-18 | 2009-05-25 | 1953–2009 | 4 | |
| Bern | Bern | Switzerland, Bern | -- | -- | | | |
| Bainbridge Performing Arts | Bainbridge Performing Arts | United States, Bainbridge Island, 200 Madison Ave N | 2006-11-12 | -- | 2006 | 1 | |
| Barn Theatre | Barn Theatre | England, Welwyn Garden City, Hertfordshire, Barn Close | 2005-11-11 | 2005-11-19 | 2005 | 1 | |
| Békés Megyei Jókai Színház | Békés Megyei Jókai Színház | Hungary, Békéscsaba, Andrássy Way 3 | 1965-01-08 | 2007-10-30 | 1965–2009 | 7 | |
| Burma (Republic of the Union of Myanmar) | Burma (Republic of the Union of Myanmar) | Myanmar | -- | -- | | | |
| Beijing Dongdan Theatre | Beijing Dongdan Theatre | China, Beijing | 1956-07-28 | -- | 1956 | 1 | |
| Bürgerhaus Ibbenbüren | Bürgerhaus Ibbenbüren | Germany, Ibbenbüren, Wilhelmstraße 14 | 2010-03-03 | -- | 2010 | 1 | |
| Baltimore | Baltimore | United States, Baltimore | 1893-03-04 | 1893-03-04 | 1893–2020 | 3 | |
| Biblioteca Sarmiento Bariloche | Biblioteca Sarmiento Bariloche | Argentina, San Carlos de Bariloche, Centro Civico, R8400 San Carlos de Bariloche, Río Negro | 2022-06-18 | -- | 2022 | 1 | |
| Bad Salzuflen, Kur- und Stadttheater | Kur- und Stadttheater Bad Salzuflen | Germany, Bad Salzuflen, Parkstraße 26 | 2018-04-27 | -- | 2018 | 1 | |
| Brekkeparken | Brekkeparken | Norway, Skien, Øvregt 41 | 1978-05-17 | 2008-06-08 | 1978–2008 | 5 | |
| Beijing Penghao Theater | Beijing Penghao Theater | China, Beijing, 35 Mianhua Hutong, Xicheng Qu | 2015-09-30 | 2017-08-09 | 2015–2017 | 3 | |
| Berkshire Theatre Festival Main Stage | Berkshire Theatre Festival Main Stage | United States, Stockbridge, 83 East Main Street | 1941-08-11 | 2009-08-29 | 1941–2009 | 2 | |
| Bystranda | Bystranda | Norway, Kristiansand, Østre Strandgate 74 | 2006-03-20 | -- | 2006 | 1 | |
| Brewery Arts Centre | Brewery Arts Centre | England, Kendal, Highgate | 1993-07-02 | 2006-05-20 | 1993–2018 | 5 | |
| Bürgerhaus | Bürgerhaus | Germany, Radevormwald, Schlossmacherstraße 4 | 2005-10-19 | -- | 2005–2017 | 3 | |
| Birkenlund skole | Birkenlund skole | Norway, Arendal, Gamle Songevei 65 | 1969-01-29 | -- | 1969–1973 | 3 | |
| Bristol Music Centre's Teater, København | Bristol Music Centre's Teater, København | Denmark, Copenhagen | 1971-10-07 | -- | 1971–1981 | 3 | |
| Banská Bystrica | Banská Bystrica | Slovak Republic, Banská Bystrica | 1890-11-19 | -- | 1890–1912 | 2 | |
| Baird Music Hall, S.U.N.Y. at Buffalo | Baird Music Hall, S.U.N.Y. at Buffalo | United States, Buffalo, 220 Baird Hall | 1963-04-22 | 1963-04-25 | 1963–1964 | 2 | |
| Bredgatan 3 | Bredgatan 3 | Sweden, Lund, Bredgatan 3 | 2008-11-28 | 2008-11-29 | 2008 | 1 | |
| Batnfjord, Samfunnshuset | Samfunnshuset Batnfjord | Norway, Batnfjord | 1990-02-21 | -- | 1990 | 1 | |
| Bremen | Bremen | Germany, Bremen | 1900-10- | 1952-02-16 | 1900–1952 | 2 | |
| Beijing University | Beijing University | China, Beijing, 5 Yiheyuan Rd, Haidian | 2006-05-16 | -- | 2006 | 1 | |
| Breidablikk | Breidablikk | Norway, Bø i Vesterålen | 1968-09-11 | -- | 1968 | 1 | |
| Belo Horizonte | Belo Horizonte | Brazil, Belo Horizonte | 2005-05- | -- | 2005 | 1 | |
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