| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | — |  | Radiolab | WNYC Studios | |
| 4 | 3 |  | Making Sense with Sam Harris | Sam Harris | |
| 5 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 4 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | 1 |  | More or Less | BBC Radio 4 | |
| 8 | — |  | All In The Mind | ABC | |
| 9 | 4 |  | Curious Cases | BBC Radio 4 | |
| 10 | 9 | B | Boring History for Sleep | Velvet | |
| 11 | 68 |  | Giant Leap with Taylor Wilson | Giant Leap | |
| 12 | 10 | W | What The Duck?! | ABC | |
| 13 | 2 |  | Discovery | BBC World Service | |
| 14 | 59 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 15 | 6 |  | BBC Inside Science | BBC Radio 4 | |
| 16 | 59 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 17 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 18 | 6 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 19 | 10 | O | Our Changing World | RNZ | |
| 20 | 17 |  | The Life Scientific | BBC Radio 4 | |
| 21 | 7 |  | Unexplainable | Vox | |
| 22 | 6 |  | Science Vs | Spotify Studios | |
| 23 | — |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 24 | 10 |  | The Science Show | ABC | |
| 25 | 13 |  | CrowdScience | BBC World Service | |
| 26 | 5 | T | The Al & Juddy Show | Agricom | |
| 27 | 5 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 28 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 29 | 14 |  | Science Weekly | The Guardian | |
| 30 | 17 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 31 | 11 |  | The Climate Question | BBC World Service | |
| 32 | 112 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 33 | 35 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 34 | 16 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 35 | 14 |  | Skeptoid | Brian Dunning | |
| 36 | 1 |  | Science In Action | BBC World Service | |
| 37 | 45 |  | Speaking of Psychology | American Psychological Association | |
| 38 | 11 |  | This Week in Cardiology | Medscape | |
| 39 | 107 |  | Astrum Space | Astrum | |
| 40 | 11 |  | Overheard at National Geographic | National Geographic | |
| 41 | 138 |  | The Common Descent Podcast | Common Descent | |
| 42 | 25 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 43 | 23 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 44 | 16 |  | The Michael Shermer Show | Michael Shermer | |
| 45 | 104 |  | The Psychology Podcast | iHeartPodcasts | |
| 46 | 21 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 47 | — |  | Eons: Surviving Deep Time | PBS | |
| 48 | — |  | Species | mackenmurphy.org | |
| 49 | 18 |  | Scotland Outdoors | BBC Radio Scotland | |
| 50 | 142 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 51 | 2 |  | Unexpected Elements | BBC World Service | |
| 52 | 26 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 53 | — |  | Mythfits | Pionaire Podcasting | |
| 54 | — |  | Cool Worlds Podcast | coolworldslab | |
| 55 | — |  | The Wild with Chris Morgan | KUOW News and Information | |
| 56 | — |  | Daniel and Jorge Explain the Universe | iHeartPodcasts | |
| 57 | — |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 58 | — | H | How I Wrote This | Brett Gordon and Karen Winterich | |
| 59 | — | F | First Principles | First Principles Podcast | |
| 60 | — | F | Field, Lab, Earth | ASA, CSSA, SSSA | |
| 61 | — | S | Strange New Worlds: A Science & Star Trek Podcast | Michael L. Wong | |
| 62 | 1 | L | Lab Notes and Life Lessons | Lab Notes and Life Lessons | |
| 63 | 30 | T | The Psychosphere | Melanie Challenger | |
| 64 | 79 |  | Instant Genius | Our Media | |
| 65 | 18 |  | Let's Learn Everything! | Maximum Fun | |
| 66 | 28 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
| 67 | 23 | T | The Vertue Podcast | Shona Vertue | |
| 68 | 28 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 69 | 33 |  | The Plodcast | Our Media | |
| 70 | 31 | ![Cosmosis [Formerly The UFO Rabbit Hole]](https://is1-ssl.mzstatic.com/image/thumb/Podcasts211/v4/6e/50/4f/6e504f3a-5967-0f9a-1858-77a5f070b7d4/mza_10360255510263335732.jpeg/100x100bb.jpg) | Cosmosis [Formerly The UFO Rabbit Hole] | Kelly Chase & Jay Christopher King | |
| 71 | 23 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 72 | 31 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 73 | 28 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 74 | 28 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 75 | 108 |  | Blurry Creatures | Blurry Creatures | |
| 76 | 33 |  | Science Magazine Podcast | Science Magazine | |
| 77 | — |  | The Astrophysics Podcast | Paul Duffell | |
| 78 | 14 | P | PhageCast | News and interviews on the phage field. | |
| 79 | 27 | T | The New Zealand General Practice Podcast | Dr Jo Scott-Jones | |
| 80 | 30 |  | The Couples Therapist Couch | Shane Birkel | |
| 81 | — | T | This Wild Life Conservation Podcast | Amy Turner | |
| 82 | 6 |  | Universe Today Podcast | Fraser Cain | |
| 83 | 23 | 3 | 39 Ways to Save the Planet | BBC Radio 4 | |
| 84 | 28 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 85 | 30 | S | Science Talk | Scientific American | |
| 86 | 32 |  | The New Quantum Era - innovation in quantum computing, science and technology | Sebastian Hassinger | |
| 87 | — | I | IGCSE Science Unlocked | Naren The Great | |
| 88 | 19 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 89 | 32 | S | Samoan Scientist Podcast | Amy | |
| 90 | 32 |  | Night Science | Itai Yanai & Martin Lercher | |
| 91 | 32 | N | Naked Scientists, In Short Special Editions Podcast | The Naked Scientists | |
| 92 | 30 | S | SoundPower | Martyn Ware and Cherub Sanson | |
| 93 | 30 | C | Curiosity Unbounded | Massachusetts Institute of Technology (MIT) | |
| 94 | 29 |  | Naturebang | BBC Radio 4 | |
| 95 | 29 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 96 | 16 |  | Science Friday | Science Friday and WNYC Studios | |
| 97 | 27 |  | Short Wave | NPR | |
| 98 | 14 |  | The world, the universe and us | New Scientist | |
| 99 | 28 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 100 | 41 |  | Dr Karl Podcast | triplej | |
