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