| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | 1 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 2 | 3 |  | Science Weekly | The Guardian | |
| 2 | — |  | Radiolab | WNYC Studios | |
| 3 | — |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 2 | C | CountryWide | RTÉ Radio 1 | |
| 6 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 3 |  | More or Less | BBC Radio 4 | |
| 7 | 2 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 7 | 2 |  | Where The Wild Thoughts Are | Jo Marchant | |
| 8 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | 18 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 9 | 4 | B | Boring History for Sleep | Velvet | |
| 11 | — |  | BBC Inside Science | BBC Radio 4 | |
| 12 | 2 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 12 | 2 | N | Naturefile | RTÉ lyric fm | |
| 13 | 3 |  | A Question of Science | The Francis Crick Institute | |
| 14 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 15 | 5 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 52 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 17 | 2 | I | In Your Nature | By BirdWatch Ireland | |
| 17 | 6 |  | Shocked | UChicago Institute for Climate and Sustainable Growth, Michael Greenstone, Amy Harder | |
| 18 | 5 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 19 | 1 |  | Oceanography | Pine Forest Media | |
| 19 | 7 |  | The Life Scientific | BBC Radio 4 | |
| 19 | 117 |  | The Climate Question | BBC World Service | |
| 20 | 2 |  | Kindred | Kate Coffin | |
| 21 | 2 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 21 | 9 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 22 | 19 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 23 | 3 |  | Science Friday | Science Friday and WNYC Studios | |
| 23 | 96 |  | Discovery | BBC World Service | |
| 23 | 9 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 24 | 4 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 25 | 44 |  | The Micah Hanks Program | Micah Hanks | |
| 25 | 2 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 26 | 67 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 26 | 12 |  | Star Diary | BBC Sky at Night Magazine | |
| 27 | 2 |  | Unexpected Elements | BBC World Service | |
| 29 | — |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 30 | 2 |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 30 | 87 |  | Somewhere in the Skies | SpectreVision Radio | |
| 31 | 16 |  | Instant Genius | Our Media | |
| 31 | 71 |  | Unexplainable | Vox | |
| 32 | 1 |  | Science Vs | Spotify Studios | |
| 32 | 14 |  | The Tox Lab | The Tox Lab | |
| 33 | 13 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 33 | 81 |  | New Books in Critical Theory | Marshall Poe | |
| 35 | — | F | Farming Today | BBC Radio 4 | |
| 35 | 112 | I | Irish Wildlife Trust | Irish Wildlife Trust | |
| 36 | 117 |  | Robinson's Podcast | Robinson Erhardt | |
| 36 | 13 |  | The Psychology Podcast | iHeartPodcasts | |
| 36 | 12 |  | CrowdScience | BBC World Service | |
| 37 | — |  | The Eco Well podcast | Jen@theecowell | |
| 37 | — |  | EverydaySpy Podcast | Andrew Bustamante | |
| 37 | 20 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 38 | 143 | T | The Aspiring Psychologist Podcast | Dr Marianne Trent | |
| 39 | 3 |  | Science In Action | BBC World Service | |
| 39 | 79 |  | Babbage from The Economist | The Economist | |
| 40 | 4 |  | The Michael Shermer Show | Michael Shermer | |
| 40 | — |  | All In The Mind | ABC | |
| 41 | 4 | T | The Alcohol 'Problem' Podcast | James Morris | |
| 42 | 22 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 42 | 3 |  | Nature Podcast | Springer Nature Limited | |
| 43 | 3 |  | The world, the universe and us | New Scientist | |
| 43 | 12 |  | Astrum Space | Astrum | |
| 44 | — | S | Space | BBC World Service | |
| 45 | 20 | T | This Week in Evolution | Vincent Racaniello | |
| 45 | — |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 45 | — | A | Apollo 8 Mission Audio | Inception Point Ai | |
| 46 | — |  | Accidental Gods | Accidental Gods | |
| 46 | — |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 46 | — | A | Apollo 9 - Mission Audio | Inception Point Ai | |
| 47 | — |  | Origin Stories | The Leakey Foundation | |
| 47 | — | P | Prehis/Stories | Kim Biddulph | |
| 48 | — |  | The Market Gardener Podcast | JM Fortier | |
| 49 | — |  | 6 Ranch Podcast | James Nash | |
| 51 | 5 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 52 | — |  | Почему мы еще живы | libo/libo | |
| 52 | 89 |  | Planet Visionaries – SEASON 5 | A podcast in partnership with The Rolex Perpetual Planet Initiative | |
| 53 | 23 |  | Naturebang | BBC Radio 4 | |
| 55 | 15 |  | You Are Not So Smart | You Are Not So Smart | |
| 55 | — |  | SciShow Tangents | Complexly | |
| 56 | — | T | The Cancer Trials Ireland Podcast | Cancer Trials Ireland | |
| 56 | — |  | Re:Energise from ESB | ESB | |
| 56 | — | R | Ri Science Podcast | The Royal Institution | |
| 57 | 16 |  | Medscape InDiscussion: Esophageal Cancer | Medscape | |
| 58 | 6 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 58 | — | L | Love The Bees Podcast | Yvonne Johnston | |
| 59 | 132 | T | The Met Éireann Podcast | Met Éireann | |
| 59 | 21 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 60 | 31 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 60 | 7 |  | 淇葩人 ChiPodRant | 阿淇博士 Dr. Achi | |
| 61 | 15 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 61 | — |  | Pale Blue Pod | Multitude | |
| 61 | 19 |  | Blurry Creatures | Blurry Creatures | |
| 62 | — | D | DCU Digital Law Perspectives | DCU Law and Tech Research Cluster | |
| 62 | 19 | P | Pete the Vet's Podcast | Pete Wedderburn | |
| 63 | 7 |  | The Long Run with Luke Timmerman | Timmerman Report | |
| 64 | 7 |  | Mysterious Universe | 8th Kind | |
