Belgium:
Dutch 58%, French 32%, German 10%, legally bilingual (Dutch
and French)

Belize:
English (official), Spanish, Mayan, Garifuna (Carib), Creole

Benin:
French (official), Fon and Yoruba (most common vernaculars in
south), tribal languages (at least six major ones in north)

Bermuda:
English (official), Portuguese

Bhutan:
Dzongkha (official), Bhotes speak various Tibetan dialects,
Nepalese speak various Nepalese dialects

Bolivia:
Spanish (official), Quechua (official), Aymara (official)

Bosnia and Herzegovina:
Croatian, Serbian, Bosnian

Botswana:
English (official), Setswana

Brazil:
Portuguese (official), Spanish, English, French

British Virgin Islands:
English (official)