| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | — |  | More or Less | BBC Radio 4 | |
| 5 | 1 |  | Radiolab | WNYC Studios | |
| 6 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 5 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 6 | — |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 6 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 7 | 2 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 9 | 5 |  | Unexplainable | Vox | |
| 10 | 26 | C | CountryWide | RTÉ Radio 1 | |
| 11 | 149 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 11 | 10 |  | Naturebang | BBC Radio 4 | |
| 12 | 5 |  | Science Weekly | The Guardian | |
| 12 | 31 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 12 | 12 |  | CrowdScience | BBC World Service | |
| 12 | 3 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 13 | 4 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 13 | — |  | The world, the universe and us | New Scientist | |
| 13 | 8 |  | Astrum Space | Astrum | |
| 14 | 4 |  | Science Vs | Spotify Studios | |
| 16 | 13 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 16 | 8 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 16 | 3 | B | Boring History for Sleep | Velvet | |
| 18 | 6 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 22 | 8 |  | BBC Inside Science | BBC Radio 4 | |
| 23 | 6 |  | You Are Not So Smart | You Are Not So Smart | |
| 26 | 26 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 26 | 40 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 27 | 10 |  | Scotland Outdoors | BBC Radio Scotland | |
| 27 | 4 |  | Mysterious Universe | 8th Kind | |
| 27 | 6 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 28 | 22 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 29 | 4 |  | Discovery | BBC World Service | |
| 30 | 26 | I | In Your Nature | By BirdWatch Ireland | |
| 31 | 6 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 31 | 102 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 32 | 29 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 32 | 9 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 33 | 125 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 33 | 13 |  | Making Sense with Sam Harris | Sam Harris | |
| 33 | 12 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 35 | 11 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 35 | 84 |  | A Question of Science | The Francis Crick Institute | |
| 36 | 6 |  | Babbage from The Economist | The Economist | |
| 36 | — | S | SYSTEMS of EXISTENCE | Katharina Hillenberg | |
| 37 | 15 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 37 | 6 | T | The Psychology Perspective | ellie2302d | |
| 38 | 100 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 39 | 17 | F | Farming Today | BBC Radio 4 | |
| 41 | 5 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 42 | 11 |  | TED Talks Science and Medicine | TED | |
| 42 | — |  | Bigfoot Terror in the Woods Sightings and Encounters | W.J. Sheehan | |
| 43 | 8 |  | Great Mysteries of Physics | The Conversation | |
| 44 | 10 |  | Instant Genius | Our Media | |
| 44 | — |  | The Numberphile Podcast | Brady Haran | |
| 44 | — | H | Heartwood Podcast | Rowan Reid | |
| 44 | — | T | Trees A Crowd | David Oakes | |
| 45 | 75 |  | Dr Karl Podcast | triplej | |
| 45 | 13 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 47 | — | L | Lifeworlds | Alexa Firmenich | |
| 47 | — | P | Psychotherapy and Applied Psychology | Dr. Daniel W Cox | |
| 48 | 3 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 49 | 3 |  | Unexpected Elements | BBC World Service | |
| 49 | 19 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 50 | 136 |  | ScienceStuff | iHeartPodcasts | |
| 52 | — | T | The Titanium Physicists Podcast | Brachiolope Media Network | |
| 53 | 7 | W | Wild Lives | Our Media | |
| 54 | 17 |  | Future Ecologies | Future Ecologies | |
| 55 | 37 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 56 | 13 |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 57 | 68 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 57 | 13 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 58 | 35 |  | That UFO Podcast | That UFO Podcast | |
| 58 | — |  | Outside/In | NHPR | |
| 59 | 20 | C | Crazy Nauka | Ola i Piotr Stanisławscy | |
| 60 | 20 | V | VoxTalks Economics | VoxTalks | |
| 60 | 38 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 60 | 11 |  | Patterns Tell Stories | UFOs & High Strangeness | KLAɄЅ & GΔRRΞTT | |
| 62 | — | T | The Abnormal Psychologist | Dr. Colby Taylor | |
| 62 | 118 |  | Rare Earth | BBC Radio 4 | |
| 63 | — | T | The Session with Tom Swarbrick | Global | |
| 64 | 23 | P | Platypod, The CASTAC Podcast | CASTAC | |
| 65 | 37 | N | New Books in Political Science | New Books Network | |
| 66 | 39 | C | Climate change - off the record | Dr Clare Noone and Dr Róisín Moriarty | |
| 67 | 40 |  | Leaked | TFLabs | |
| 68 | 44 | N | Naturefile | RTÉ lyric fm | |
| 68 | 9 |  | The Michael Shermer Show | Michael Shermer | |
| 69 | 32 |  | Planet Em | Emily McDonald | |
| 71 | 48 |  | Mind & Life | Mind & Life Institute | |
| 72 | 14 |  | Speaking of Psychology | American Psychological Association | |
| 74 | 44 | G | Genetics Unzipped | The Genetics Society | |
| 75 | 47 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 78 | 18 |  | Nature Podcast | Springer Nature Limited | |
| 79 | 6 |  | Science In Action | BBC World Service | |
| 79 | 37 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 80 | 34 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 81 | 55 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 82 | 29 |  | ExtinctZoo | ExtinctZoo | |
