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