- Balkan Section1
- Balázs Béla Stúdió1
- Belarusfilm1
- Belügyminisztérium Központi Irattára1
- Berg, David1
- Blackmer, Donald L. M.1
- Borisov, Oleg Borisovich1
- Bortoli, Georges1
- Bradley, John Francis Nejez1
- British Broadcasting Corporation, Written Archive Centre1
- Bromke, Adam1
- Brown, J. F.1
- Buchan, Alastair1
- Bugár, Jánosné1
- Bulgarian Unit1
- Bódy, Gábor1
- China (People's Republic of China, 1949- )1
- Claudin, Fernando1
- Clyde, Paul Hibbert1
- Communist International Congress1