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