| 1 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | — |  | Unexplainable | Vox | |
| 4 | — |  | Ologies with Alie Ward | Alie Ward | |
| 5 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 7 | 1 |  | Radiolab | WNYC Studios | |
| 8 | 45 |  | Science Weekly | The Guardian | |
| 9 | 3 |  | Curious Cases | BBC Radio 4 | |
| 10 | 12 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 11 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 12 | 39 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 13 | 6 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 14 | — |  | Ancient Aliens | PodcastOne | |
| 15 | 5 |  | The Psychology Podcast | iHeartPodcasts | |
| 16 | 7 | S | Students of Surgery | Martin Brand | |
| 17 | 5 |  | Universe Today Podcast | Fraser Cain | |
| 18 | 103 |  | The Life Scientific | BBC Radio 4 | |
| 19 | 1 |  | Science Vs | Spotify Studios | |
| 20 | 7 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 21 | 7 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 22 | 3 |  | More or Less | BBC Radio 4 | |
| 23 | 86 |  | Invisibilia | NPR | |
| 24 | 160 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 25 | 102 | T | The Upper Hand: Chuck & Chris Talk Hand Surgery | Chuck and Chris | |
| 26 | 10 |  | Speaking of Psychology | American Psychological Association | |
| 27 | 123 | B | BJA Education Podcasts | BJA Education | |
| 28 | 170 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 29 | — |  | Big Picture Science | Big Picture Science | |
| 30 | 164 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 31 | 16 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 32 | 15 |  | The Quanta Podcast | Quanta Magazine | |
| 33 | — |  | Nature Guys | Nature Guys | |
| 34 | 152 |  | Astronomy Daily: Space News Updates | bitesz.com | |
| 35 | — | A | A Light On | A Light On | |
| 36 | — | V | VoxDev Development Economics | VoxDev.org | |
| 37 | — | T | The Decision Corner | The Decision Lab | |
| 38 | — |  | The Pulse | WHYY | |
| 39 | — |  | The Social-Engineer Podcast | Social-Engineer, LLC | |
| 40 | — | I | Inquiring Minds | Indre Viskontas | |
| 41 | — | F | Futures Research Unpacked | Wensupu Yang | |
| 42 | — | B | Big Picture Science | Big Picture Science | |
| 43 | 19 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 44 | 24 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 45 | 8 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 46 | 23 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 47 | 19 |  | Discovery | BBC World Service | |
| 48 | 22 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 49 | 20 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 50 | 29 |  | CrowdScience | BBC World Service | |
| 51 | 4 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 52 | 25 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 53 | 67 | T | The Naked Scientists Podcast | The Naked Scientists | |
| 54 | 12 | A | Arthroscopy Podcast | AANA | |
| 55 | 15 |  | Deep Insights with Mining Review Africa | Mining Review Africa | |
| 56 | 22 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 57 | 27 |  | The Future of Everything | Stanford Engineering | |
| 58 | 27 |  | ScienceStuff | iHeartPodcasts | |
| 59 | 27 | D | Data Science Decoded | Mike E | |
| 60 | 14 |  | Blurry Creatures | Blurry Creatures | |
| 61 | — | Q | Question of the Week, from the Naked Scientists | Dr Chris Smith | |
| 62 | 10 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 63 | 30 |  | Most Terrifying Places in America | Travel Channel | |
| 64 | 29 |  | Need To Know | Bryce Zabel | |
| 65 | 29 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 66 | 28 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 67 | 28 | F | Fire Science Show | Wojciech Wegrzynski | |
| 68 | 27 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 69 | 26 | T | Talking Naturally | Charlie Moores / Rare Bird Alert / WildSounds | |
| 70 | 26 | C | Cherry Picked | Jessica.fearnley | |
| 71 | 26 | A | Agri-History | Brandon | |
| 72 | 18 |  | Alive Again | iHeartPodcasts | |
| 73 | 25 |  | All In The Mind | ABC | |
| 74 | 25 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 75 | 25 |  | Overheard at National Geographic | National Geographic | |
| 76 | 8 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 77 | 12 |  | Mythfits | Pionaire Podcasting | |
| 78 | 18 | R | RadioGraphics Podcast | RSNA | Radiological Society of North America (RSNA) | |
| 79 | 16 |  | Sustainability, Climate Change, Renewable Energy, Politics, Activism, Biodiversity, Carbon Footprint, Wildlife, Regenerative | Mia Funk | |
| 80 | 19 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 81 | 25 | G | Green Noise | CapeNature | |
| 82 | 27 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 83 | 6 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 84 | 25 | T | The Universe Speaks in Numbers | Faber and Faber | |
| 85 | 28 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 86 | 14 |  | Science Friday | Science Friday and WNYC Studios | |
| 87 | 29 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 88 | 9 |  | Short Wave | NPR | |
| 89 | 27 |  | Ask a Spaceman! | Paul M. Sutter | |
| 90 | 26 | R | Radiology Podcast | RSNA | The Radiological Society of North America | |
| 91 | 23 |  | Bedtime Astronomy | Synthetic Universe | |
| 92 | 26 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 93 | 26 |  | The Couples Therapist Couch | Shane Birkel | |
| 94 | 25 | M | Mushroom Revival Podcast | Alex Dorr | |
| 95 | 25 | D | DNA Dialogues: Conversations in Genetic Counseling Research | Journal of Genetic Counseling (Jehannine Austin, Naomi Wagner, Khalida Liaquat, Kate Wilson and DNA Today’s Kira Dineen) | |
| 96 | 25 | C | Clinically Thinking | Clinically Thinking | |
| 97 | 25 |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 98 | 25 | S | Soul Healing Love | Soul Healing Love | |
| 99 | 25 | I | It Happened To Me: A Rare Disease and Medical Challenges Podcast | Cathy Gildenhorn, Beth Glassman, and Kira Dineen (DNA Today) | |
| 100 | 24 | T | Theories of Everything with Curt Jaimungal | Theories of Everything | |
