| 1 | — |  | Ologies with Alie Ward | Alie Ward | |
| 2 | — |  | Lost Women of Science | Lost Women of Science | |
| 2 | 2 |  | A Question of Science | The Francis Crick Institute | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | — |  | Radiolab | WNYC Studios | |
| 5 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 7 | — |  | Unexplainable | Vox | |
| 7 | — |  | Science Vs | Spotify Studios | |
| 7 | 4 |  | More or Less | BBC Radio 4 | |
| 8 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 10 | 2 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 10 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 10 | 3 |  | Science Weekly | The Guardian | |
| 13 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 13 | 10 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 14 | 5 |  | All In The Mind | ABC | |
| 16 | 99 |  | New Books in Critical Theory | Marshall Poe | |
| 16 | 2 |  | Giant Leap with Taylor Wilson | Giant Leap | |
| 16 | 8 |  | The Psychology Podcast | iHeartPodcasts | |
| 17 | — |  | Science In Action | BBC World Service | |
| 18 | 5 | B | Boring History for Sleep | Velvet | |
| 18 | 3 |  | Dr Karl Podcast | triplej | |
| 19 | 56 |  | Unexpected Elements | BBC World Service | |
| 19 | — |  | Babbage from The Economist | The Economist | |
| 19 | 6 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 20 | 4 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 20 | 7 | B | BJA Education Podcasts | BJA Education | |
| 22 | 36 |  | CrowdScience | BBC World Service | |
| 22 | 46 |  | That UFO Podcast | That UFO Podcast | |
| 22 | 4 |  | Curious Cases | BBC Radio 4 | |
| 23 | 56 |  | Universe Today Podcast | Fraser Cain | |
| 24 | 6 |  | Blurry Creatures | Blurry Creatures | |
| 24 | 28 |  | Training Without Conflict Podcast | Training Without Conflict® | |
| 25 | — |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 26 | 10 |  | The world, the universe and us | New Scientist | |
| 26 | 10 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 26 | 66 |  | Nature Podcast | Springer Nature Limited | |
| 27 | 7 | O | Our Changing World | RNZ | |
| 28 | 11 |  | Discovery | BBC World Service | |
| 30 | 58 |  | The Common Descent Podcast | Common Descent | |
| 30 | 11 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 30 | 10 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 31 | 8 |  | Cited Podcast | Cited Media | |
| 31 | 26 |  | Science Friction | ABC | |
| 32 | 2 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 32 | 92 |  | Astrum Space | Astrum | |
| 33 | — |  | Mythfits | Pionaire Podcasting | |
| 33 | 11 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 34 | — |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 35 | 8 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 36 | — | I | In the Interim... | Berry | |
| 36 | 17 |  | Speaking of Psychology | American Psychological Association | |
| 37 | 8 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 37 | 9 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 38 | — | F | Frame by Frame: Rethink Imaging | Imalogix | |
| 38 | 14 | O | Open Country | BBC Radio 4 | |
| 39 | 13 |  | TheThinkingAtheist | The Thinking Atheist | |
| 40 | 14 |  | Overheard at National Geographic | National Geographic | |
| 41 | 11 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 41 | — |  | The Human Progress Podcast | HumanProgress.org | |
| 43 | — |  | Big Brains | University of Chicago Podcast Network | |
| 44 | 17 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 44 | — | B | blurbs | Matt Ross | |
| 44 | — |  | The Quanta Podcast | Quanta Magazine | |
| 44 | 99 |  | Bedrock: Earth's Earliest History | Dylan Wilmeth | |
| 46 | — |  | ScienceStuff | iHeartPodcasts | |
| 46 | 15 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 46 | 21 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 48 | 15 |  | You Are Not So Smart | You Are Not So Smart | |
| 49 | 10 |  | UFO Chronicles Podcast | Nik Hunter | |
| 50 | 17 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 51 | 16 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 52 | 140 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 52 | — |  | Dope Labs | iHeartPodcasts | |
| 52 | 8 |  | This Week in Virology | Vincent Racaniello | |
| 53 | 8 |  | Podcast UFO | Martin Willis | |
| 54 | 12 |  | iNTO THE FRAY RADIO - Encounters with the Paranormal | SpectreVision Radio | |
| 54 | — | V | VoxDev Development Economics | VoxDev.org | |
| 55 | 6 | T | The Natural History of Sussex | TheNaturalHistoryofSussex | |
| 55 | 143 |  | Why Do We Do That? | BBC Radio 4 | |
| 56 | 13 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 57 | 12 | K | Ko Papa Ko Rangi: Ahi Kaa | The Spinoff | |
| 57 | 17 | B | Branch Out | Botanic Gardens of Sydney | |
| 58 | 17 |  | Paranormal Portal | Brent Thomas | |
| 58 | 15 |  | Manifold | Steve Hsu | |
| 60 | 13 |  | Cryptids Of The Corn | Cryptids of the Corn Podcast | |
| 61 | 11 | T | THE KIWI ASTRONOMERS | thekiwiastronomers | |
| 63 | 19 |  | Strange Encounters with Rick Burgess | Blaze Podcast Network | |
| 64 | 6 |  | The TBRI Podcast | Karyn Purvis Institute of Child Development TCU | |
| 65 | 12 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 66 | 21 |  | Strange Animals Podcast | Katherine Shaw | |
| 67 | 21 | B | Believe: Paranormal & UFO Podcast | Kade Moir | |
| 67 | — |  | Naturebang | BBC Radio 4 | |
| 68 | 21 |  | UFO Witnesses | UFO Witnesses | |
| 70 | 37 |  | The Science Show | ABC | |
| 70 | 22 | T | The Biologic Podcast | Isaac V | |
| 71 | 13 | C | Cryptozoology with Dr. Daisy | Dr. Daisy | |
| 72 | — | Y | Your Complex Brain | Krembil Brain Institute | |
| 72 | 2 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 72 | 22 | A | Asimov Press | Asimov Press | |
