River with B
- Brahmaputra
- black river
- Black
- Bosna
- Beas
- Bog River
- Brown
- Boise
- Blue Nile
- Boston river
- Blue river
- Bengal
- bean river
- Bhramaputra
- Brazos
- bear creek
- Boyne
- Boardman River
- brown river
- Bear river
- Brent
- Baltimore River
- bravo
- Baltimore
- Bramhaputra
- Back creek
- Beach
- Big Vermillion
- banas
- bogota
- Bile
- Brooklyn river
- Belize
- Bode
- Bhramputra
- Bronx
- Bass
- Bangladesh
- bay
- Boy
- Bean
- Basin
- ball
- Bengali
- Bill
- Bourne
- Boise river
- bengal river
- Bodensee
- Bay of bengal
- Banas River
- Barrow
- Buffalo River
- Banksy
- bosnia
- Bhagirathi
- berlin
- Brandywine
- bog
- brook
- bug
- Bahamas
- Baby
- ben
- Banana river
- Bosphorus
- bad river
- Babuna
- bad
- butt
- blood
- baron
- Benue
- Blackwater
- Bell
- Brigach
- Bass River
- Bore
- baltic
- Brisbane River
- bangladesh river
- Babylon river
- boardman
- Buna
- Back River
- broad river
- Bat
- Brda
- Buriganga
- brooklyn
- Bason
- Bond
- Barwon
- Boyd
- Betwa
- Ban
- bojana
- Bow river
- bongo
- beni
The words in the list River with B come from players of the word game City, Country, River.