- Bons e Maus Condutores Elétricos
- Boom Gardens
- Boris's podcast
- Born to science podcast
- Borrowed Time
- Bosques verticales
- Botanical Buzz
- Botanical Mystery Tour
- Botanical Society of South Africa - KZN Coastal Branch
- Botanically Speaking
- BotaniCast
- BOTANICAST - O podcast do Jardim Botânico Municipal de Bauru
- Botany After Dark
- Botany One
- BOTCAST
- Both&
- Botón Aórtico
- BPP Alian
- Brad Field Weather
- Brady Heywood Podcast
- Brain Beat
- Brain Inspired
- Brain Inspired
- Brain Junk
- Brain Matters
- Brain Power 101: How to Boost Your Memory and Stay Brain Healthy at Any Age
- Braincast - auf der Frequenz zwischen Geist und Gehirn
- Braincast - on the frequency of Mind and Brain
- Braincast - Videos zwischen Geist und Gehirn
- Braindrizzle
- Brainflicks — der Podcast über Psychologie im Film.
- Brains Matter
- BrainStuff
- BrainTools
- Branch Out
- Brandstof
- Braulio Jesus Castro Rios
- BrayanH4205
- Breakfast With Minerals
- Breaking Bio
- Breaking Green Ceilings
- Breaking Lab
- Bret Weinstein | DarkHorse Podcast
- Bridging the Carbon Gap
- Bright Club - Cambridge
- Brilhante Marinha-A Biodiversidade Marinha
- Britcultura
- Broken Ground
- Brood X: The Cicada Podcast
- Buddy's podcast
- Bug Bytes
- Bug Hive
- Bugs Blood and Bones
- Bugs of the Month
- Bukspyttkjertelen
- Bumi Tempat Tinggal Kita
- Buried Interfaces
- Burn Bright Today: Burn Brighter Tomorrow with Jennifer Jay
- Buscando El Cuidado Del Ambiente
- Buschtrommel-Podcast
- Business
- Business Reality With Adeniyi Shoremi
- But What Do I Buy?
- Bäst på test