| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | 2 |  | Science Weekly | The Guardian | |
| 3 | — |  | Curious Cases | BBC Radio 4 | |
| 4 | 3 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 5 | 2 |  | Radiolab | WNYC Studios | |
| 5 | 23 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 6 | 1 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 6 | 1 | B | Boring History for Sleep | Velvet | |
| 9 | 3 |  | More or Less | BBC Radio 4 | |
| 10 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 11 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 11 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 12 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 13 | 4 | C | CountryWide | RTÉ Radio 1 | |
| 13 | — | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 13 | 15 | T | The Dairy Trail | Agriland Media | |
| 14 | 9 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 15 | — |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 16 | — |  | Google DeepMind: The Podcast | Hannah Fry | |
| 18 | 10 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 18 | 6 |  | The world, the universe and us | New Scientist | |
| 18 | 5 |  | Science Vs | Spotify Studios | |
| 19 | 4 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 21 | 4 |  | Unexplainable | Vox | |
| 23 | 9 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 25 | 8 | N | New Scientist Weekly | New Scientist | |
| 26 | 29 |  | Babbage from The Economist | The Economist | |
| 26 | 7 |  | BBC Inside Science | BBC Radio 4 | |
| 26 | 13 |  | CrowdScience | BBC World Service | |
| 27 | 15 | N | Naturefile | RTÉ lyric fm | |
| 27 | 31 |  | Discovery | BBC World Service | |
| 27 | 45 |  | TED Talks Science and Medicine | TED | |
| 28 | 8 |  | The Life Scientific | BBC Radio 4 | |
| 28 | 77 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 29 | 29 |  | Science Friday | Science Friday and WNYC Studios | |
| 29 | 10 |  | Astrum Space | Astrum | |
| 30 | 11 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 30 | 60 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 30 | 1 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 32 | 14 |  | The Plodcast | Our Media | |
| 33 | 15 |  | You Are Not So Smart | You Are Not So Smart | |
| 33 | 24 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 33 | — |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 34 | 7 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 34 | 13 |  | The Couples Therapist Couch | Shane Birkel | |
| 35 | — |  | Chemistry Made Simple | Matthew Macariou | |
| 36 | — |  | Thoughtforms Life | Michael Levin | |
| 36 | 79 | T | The Signpost Series | Teagasc | |
| 37 | 9 |  | That UFO Podcast | That UFO Podcast | |
| 37 | — | V | VoxDev Development Economics | VoxDev.org | |
| 37 | — | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 37 | 89 |  | Physics World Weekly Podcast | Physics World | |
| 38 | — | H | Humanitarian Engineering | Humanitarian Engineering Group | |
| 39 | — | B | Breakthroughs | Pfizer | |
| 40 | — | C | CORDIScovery – unearthing the hottest topics in EU science, research and innovation | CORDIScovery | |
| 41 | 115 |  | Regenerative Agriculture Podcast | John Kempf | |
| 42 | 3 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 42 | 12 |  | Somewhere in the Skies | SpectreVision Radio | |
| 43 | 9 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 43 | — |  | Naturebang | BBC Radio 4 | |
| 44 | 18 |  | A Life More Wild | Canopy & Stars | |
| 45 | — | E | ERS Publications Podcasts | ERS Publications Podcasts | |
| 45 | 62 | T | The Function Room | GoLoud | |
| 46 | — |  | Cryptids Of The Corn | Cryptids of the Corn Podcast | |
| 47 | 17 |  | All In The Mind | ABC | |
| 48 | 65 | U | Upland Voices Podcast - ACRES Donegal | Aileen Collery | |
| 49 | 47 | F | Farming Today | BBC Radio 4 | |
| 50 | 9 |  | Mysterious Universe | 8th Kind | |
| 50 | — | S | Science on the Menu: A Food Safety Podcast by EFSA | European Food Safety Authority (EFSA) | |
| 51 | 18 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 51 | 13 |  | Mind & Life | Mind & Life Institute | |
| 52 | 17 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 52 | — |  | The Joy of x | Steven Strogatz and Quanta Magazine | |
| 53 | — | T | tHEORetically Speaking | HealthEconomics.com | |
| 53 | 21 | B | Bir Aile Meselesi | Bir Aile Meselesi | |
| 54 | 11 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 55 | — | S | Spacetime Fika | Jonas Enander | |
| 55 | 8 |  | UFO Chronicles Podcast | Nik Hunter | |
| 56 | 39 |  | The Astrophysics Podcast | Paul Duffell | |
| 56 | — | G | Global Food Security | Cambridge University | |
| 57 | 5 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 57 | 23 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 58 | 26 |  | Weather Geeks | Weather Group Television | |
| 59 | 22 |  | Re:Energise from ESB | ESB | |
| 60 | — | T | Tree Lady Talks | The Tree Lady, Sharon Durdant-Hollamby | |
| 62 | 18 | I | In Your Nature | By BirdWatch Ireland | |
| 64 | 11 |  | The Michael Shermer Show | Michael Shermer | |
| 65 | 25 |  | Scotland Outdoors | BBC Radio Scotland | |
| 66 | 37 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 67 | 21 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 67 | 6 |  | MonsterTalk | Blake Smith | |
| 68 | 17 |  | Universe Today Podcast | Fraser Cain | |
| 69 | 46 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 70 | 19 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 72 | 44 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 73 | 18 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 74 | 9 |  | Unexpected Elements | BBC World Service | |
| 74 | 43 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 74 | 19 |  | A Question of Science | The Francis Crick Institute | |
