- Anders, Władysław1
- Andonov, Ivan1
- Antonijević, Predrag1
- Anwar, Raja1
- Aranovich, Semyon1
- Armstrong, Campbell1
- Askol'dov, Sergei Alekseevich1
- Aspen Institute1
- Aveling, Eleanor Marx1
- Babelʹ, I.1
- Babii, Aleksandr Ivanovich1
- Backes, Uwe1
- Balkan Section1
- Ball, Alan M.1
- Balog, Ilona S.1
- Baló, György1
- Baradat, Leon P.1
- Bareja, Stanisław1
- Baschet, Eric1
- Basov, A. V.1