| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | — |  | Science Weekly | The Guardian | |
| 4 | 1 |  | Curious Cases | BBC Radio 4 | |
| 5 | 1 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 5 | 4 |  | More or Less | BBC Radio 4 | |
| 5 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 6 | — | F | Futureproof with Jonathan McCrea | Newstalk | |
| 6 | 10 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 6 | — | B | Boring History for Sleep | Velvet | |
| 6 | 7 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 8 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 8 | — |  | Leaked | TFLabs | |
| 9 | 4 |  | Radiolab | WNYC Studios | |
| 9 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 9 | 5 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 11 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 11 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 14 | 60 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 15 | 140 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 16 | 3 | C | CountryWide | RTÉ Radio 1 | |
| 17 | 4 | T | The Dairy Trail | Agriland Media | |
| 18 | — |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 18 | 16 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 19 | 171 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 19 | 14 |  | You Are Not So Smart | You Are Not So Smart | |
| 19 | 48 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 20 | 82 |  | Speaking of Psychology | American Psychological Association | |
| 20 | 7 |  | TED Talks Science and Medicine | TED | |
| 21 | 5 |  | Babbage from The Economist | The Economist | |
| 21 | — |  | Unexplainable | Vox | |
| 22 | 43 |  | Scotland Outdoors | BBC Radio Scotland | |
| 22 | 4 |  | Science Vs | Spotify Studios | |
| 23 | 29 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 23 | 22 | E | ERS Publications Podcasts | ERS Publications Podcasts | |
| 23 | 8 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 24 | 6 |  | The world, the universe and us | New Scientist | |
| 25 | — | N | New Scientist Weekly | New Scientist | |
| 25 | 3 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 26 | 126 | T | The Cancer Trials Ireland Podcast | Cancer Trials Ireland | |
| 26 | 3 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 27 | — | N | Naturefile | RTÉ lyric fm | |
| 27 | — |  | Discovery | BBC World Service | |
| 27 | 10 |  | That UFO Podcast | That UFO Podcast | |
| 27 | 6 |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 28 | 9 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 28 | 41 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 28 | 9 |  | Physics World Weekly Podcast | Physics World | |
| 29 | 142 |  | Planet Em | Emily McDonald | |
| 30 | 53 | C | Climate change - off the record | Dr Clare Noone and Dr Róisín Moriarty | |
| 31 | 5 | T | The Signpost Series | Teagasc | |
| 32 | 3 |  | Chemistry Made Simple | Matthew Macariou | |
| 33 | 8 |  | Regenerative Agriculture Podcast | John Kempf | |
| 33 | — |  | Species | mackenmurphy.org | |
| 34 | — |  | Particles of Thought | GBH | |
| 34 | 2 |  | The Plodcast | Our Media | |
| 34 | 9 |  | Naturebang | BBC Radio 4 | |
| 35 | 6 |  | Science Friday | Science Friday and WNYC Studios | |
| 35 | 47 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 35 | 6 |  | Astrum Space | Astrum | |
| 35 | — |  | Brave New World | Evening Standard | |
| 35 | 5 | C | CORDIScovery – unearthing the hottest topics in EU science, research and innovation | CORDIScovery | |
| 36 | — | T | The Sod Pod | Grassland Agro | |
| 36 | — |  | My Bigfoot Sighting | Vic Cundiff | |
| 36 | 61 | ![Cosmosis [Formerly The UFO Rabbit Hole]](https://is1-ssl.mzstatic.com/image/thumb/Podcasts211/v4/6e/50/4f/6e504f3a-5967-0f9a-1858-77a5f070b7d4/mza_10360255510263335732.jpeg/100x100bb.jpg) | Cosmosis [Formerly The UFO Rabbit Hole] | Kelly Chase & Jay Christopher King | |
| 37 | — | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 38 | 10 |  | The Life Scientific | BBC Radio 4 | |
| 38 | — |  | The Nature Of with Willow Defebaugh | Atmos | |
| 39 | — | ' | 'Mind the Kids': an ACAMH podcast | The Association for Child and Adolescent Mental Health | |
| 39 | — | B | Breakthroughs | Pfizer | |
| 40 | 14 |  | CrowdScience | BBC World Service | |
| 40 | 4 |  | Thoughtforms Life | Michael Levin | |
| 41 | 5 |  | Cryptids Of The Corn | Cryptids of the Corn Podcast | |
| 42 | 12 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 42 | 8 | S | Science on the Menu: A Food Safety Podcast by EFSA | European Food Safety Authority (EFSA) | |
| 42 | — |  | Scientias Podcast | Scientias | |
| 43 | 6 | V | VoxDev Development Economics | VoxDev.org | |
| 43 | — |  | La Science, CQFD | France Culture | |
| 44 | 29 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 44 | 1 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 44 | 10 |  | The Couples Therapist Couch | Shane Birkel | |
| 44 | 8 |  | The Joy of x | Steven Strogatz and Quanta Magazine | |
| 45 | 8 | T | tHEORetically Speaking | HealthEconomics.com | |
| 45 | — |  | The Feldman Protocol | Dave Feldman | |
| 46 | 8 | H | Humanitarian Engineering | Humanitarian Engineering Group | |
| 47 | 8 | S | Spacetime Fika | Jonas Enander | |
| 47 | — | M | MULTIPLE HATS: STEM Careers | Reinvention | Entrepreneurship |Thought Leadership | Angelique Greco | Biotech & Health-Tech Expert | STEM Thought Leadership Coach | |
| 48 | 15 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 48 | 8 | G | Global Food Security | Cambridge University | |
| 49 | 7 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 49 | — |  | Ken Cook Is Having Another Episode | EWG | |
| 59 | 29 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 63 | 37 |  | BBC Inside Science | BBC Radio 4 | |
| 63 | 12 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 64 | 22 |  | Somewhere in the Skies | SpectreVision Radio | |
| 67 | 22 | T | The Function Room | GoLoud | |
| 67 | 37 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 68 | 24 |  | A Life More Wild | Canopy & Stars | |
| 69 | 21 | U | Upland Voices Podcast - ACRES Donegal | Aileen Collery | |
| 69 | 1 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
