| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | 1 |  | Radiolab | WNYC Studios | |
| 3 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | 3 |  | The Rest Is Science | Goalhanger | |
| 4 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 2 |  | Unexplainable | Vox | |
| 9 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 2 |  | Curious Cases | BBC Radio 4 | |
| 10 | 2 |  | Science Vs | Spotify Studios | |
| 10 | — |  | Science Weekly | The Guardian | |
| 11 | — | B | Boring History for Sleep | Velvet | |
| 12 | 8 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 14 | 2 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 14 | 2 |  | Blurry Creatures | Blurry Creatures | |
| 15 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 16 | 67 |  | Speaking of Psychology | American Psychological Association | |
| 16 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 5 | S | Students of Surgery | Martin Brand | |
| 17 | 4 |  | Discovery | BBC World Service | |
| 17 | 2 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 17 | 4 |  | The Michael Shermer Show | Michael Shermer | |
| 18 | 65 |  | The Life Scientific | BBC Radio 4 | |
| 18 | 3 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 19 | 34 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 20 | 4 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 21 | 21 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 21 | 7 |  | Let's Learn Everything! | Maximum Fun | |
| 22 | 5 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 23 | 7 |  | More or Less | BBC Radio 4 | |
| 23 | 5 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 24 | 10 |  | Breaking Math Podcast | Autumn Phaneuf & Noah Giansiracusa | |
| 25 | 8 |  | TheThinkingAtheist | The Thinking Atheist | |
| 27 | 4 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 27 | 2 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 27 | 6 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 29 | 17 |  | Short Wave | NPR | |
| 29 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 30 | 13 |  | Nature Podcast | Springer Nature Limited | |
| 30 | 8 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 31 | 2 |  | How We're Wired | The Bertarelli Foundation | |
| 32 | 8 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 33 | 118 |  | Cool Worlds Podcast | coolworldslab | |
| 34 | 120 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 34 | 80 |  | The Science of Birds | Ivan Phillipsen | |
| 35 | 2 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 36 | 2 |  | Regenerative Agriculture Podcast | John Kempf | |
| 36 | 39 | G | Guardians of the River | Wild Bird Trust, NGOWP, House of Pod | |
| 37 | 35 |  | Planet Visionaries – SEASON 5 | A podcast in partnership with The Rolex Perpetual Planet Initiative | |
| 37 | — |  | Science Friday | Science Friday and WNYC Studios | |
| 37 | — | I | Into The Paranormal, Podcast With Tony Brueski | Real Story Media | |
| 38 | — | W | White Coat, Black Art | CBC | |
| 38 | 8 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 39 | — | Q | Quantum Physics for Kids | Subatomic Tanvi | |
| 39 | 14 |  | The Psychology Podcast | iHeartPodcasts | |
| 40 | 17 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 40 | 16 |  | Unexpected Elements | BBC World Service | |
| 41 | 18 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 42 | 23 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 42 | — | S | Safari Stories | Trunks and Tracks | |
| 43 | 17 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 44 | 9 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 44 | 21 |  | Planet Em | Emily McDonald | |
| 44 | 4 |  | Skeptoid | Brian Dunning | |
| 45 | 10 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 47 | 14 |  | CrowdScience | BBC World Service | |
| 48 | 78 | T | The Human Risk Podcast | Human Risk | |
| 49 | 37 |  | Astrum Space | Astrum | |
| 49 | — |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 49 | 1 |  | That UFO Podcast | That UFO Podcast | |
| 49 | 69 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 50 | — | O | Oxford Sparks Big Questions | Oxford Sparks | |
| 50 | 21 |  | The Quanta Podcast | Quanta Magazine | |
| 50 | 15 |  | New Books in Critical Theory | Marshall Poe | |
| 51 | — |  | Patient Zero | NHPR | |
| 51 | 5 | T | The Deep-Sea Podcast | Thomas Linley | |
| 52 | — | R | RumiNation | Jefo | |
| 52 | 13 |  | You Are Not So Smart | You Are Not So Smart | |
| 52 | 10 |  | A Question of Science | The Francis Crick Institute | |
| 53 | 73 |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 54 | — |  | The Jim Rutt Show | The Jim Rutt Show | |
| 54 | 9 |  | This Week in Cardiology | Medscape | |
| 55 | 47 |  | Science Magazine Podcast | Science Magazine | |
| 56 | — | W | Wildest Kruger Stories | Karolina Norée | |
| 57 | 20 |  | All In The Mind | ABC | |
| 57 | 1 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 61 | 7 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 62 | — | I | Into the Okavango | Okavango15 Expedition Team | |
| 63 | 12 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 66 | 8 |  | Skeptics with a K | Skeptic Media Limited | |
| 67 | — | P | Physics World Stories Podcast | Physics World | |
| 67 | 52 |  | Science Quickly | Scientific American | |
| 68 | — | L | Logically Answered | Logically Answered | |
| 68 | 32 |  | Geology Bites | Oliver Strimpel | |
| 69 | 24 | U | Unlocking Behaviour Change | Robert West | |
| 70 | — |  | On Humans | Ilari Mäkelä | |
| 71 | — |  | Dr Karl Podcast | triplej | |
| 73 | 35 |  | The Global Energy & Environmental Law Podcast | The International Environmental Law Committee of the American Branch of the International Law Association | |
| 73 | 14 |  | The Science Show | ABC | |
