| 1 | — | P | Podcast de Juan Ramón Rallo | Juan Ramón Rallo | |
| 1 | 1 |  | Espacio en blanco | Radio Nacional | |
| 2 | 1 |  | Materia Oscura | ABC | |
| 3 | 1 |  | Coffee Break: Señal y Ruido | Coffee Break: Señal y Ruido | |
| 5 | 3 |  | A hombros de gigantes | Radio 5 | |
| 5 | 1 |  | Horizonte – Iker Jiménez | Mediaset | |
| 5 | — | A | Antifragil Podcast | Omar Enfedaque & Tribal Uri | |
| 7 | — | M | Muy Interesante - Grandes Reportajes | Zinet Media | |
| 8 | 3 |  | Mindfacts: Historia y futuro de la Ciencia y la Tecnología | Yes We Cast | |
| 9 | — | H | Hablando con Científicos - Cienciaes.com | cienciaes.com | |
| 9 | 1 | L | La Ciencia de A Vivir | Cadena SER | |
| 10 | 4 | L | La Brújula de la Ciencia | Alberto Aparici | |
| 10 | 25 | T | Tras la tormenta | Radio Nacional | |
| 12 | — |  | Órbita Laika. El podcast | RNE Audio | |
| 13 | 10 | C | Catástrofe ultravioleta | elDiario.es | |
| 13 | 8 | O | Oscilador Armónico | OsciladorArmónico | |
| 13 | — | Á | Ático Primera con Laia Castel | laiascastel | |
| 14 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 15 | 15 |  | BBC Inside Science | BBC Radio 4 | |
| 16 | 1 | Á | Átomos y Bits | Agencia EFE | |
| 16 | 46 |  | Serendipias | SER Podcast | |
| 16 | — | V | Vida Eterna. Respuestas desde la Ciencia | Dr. Manuel Sans Segarra | Dr. Manuel Sans Segarra | |
| 17 | 94 | L | La Terra és plana | Catalunya Ràdio | |
| 18 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 19 | 6 | A | Aparici en Órbita | Alberto Aparici | |
| 20 | 37 |  | Radiolab | WNYC Studios | |
| 20 | — |  | Sapiens | Radio Nacional | |
| 22 | — | N | New Books in Anthropology | New Books Network | |
| 22 | 28 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 23 | 29 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 23 | 13 | S | Supersónicos Anónimos | SupersónicosAnónimos | |
| 24 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 24 | — |  | Discovery | BBC World Service | |
| 26 | — |  | Heavy Mental | David, Javier y Miki | |
| 27 | — |  | Evolutionary Psychology (the podcast) | Dave Pietraszewski & David Pinsof | |
| 29 | — |  | Aparici en Órbita | OndaCero | |
| 29 | 50 | C | Conversemos de astronomía | Juan Carlos Beamin | |
| 31 | — | A | Astronomía Autodidacta | Carlos Andres Carvajal Tascon | |
| 32 | 109 |  | All In The Mind | ABC | |
| 32 | 40 |  | Arpa Talks | Arpa Talks | |
| 32 | — | N | New Books in Science, Technology, and Society | New Books Network | |
| 33 | — | U | Un Humano por Persona | Tamara Pazos Cordal | |
| 34 | — | H | Hi ha algú, allà fora? | Joan Anton Català | |
| 34 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 35 | 127 | E | El sueño de Laika | JuanMa Parrondo | |
| 36 | 11 |  | Palabra Plena, con Gabriel Rolón | Infobae | |
| 36 | 7 | R | Ruido de lluvia y truenos para dormir | Ruido de lluvia | |
| 37 | — |  | Science Weekly | The Guardian | |
| 38 | 21 |  | Fallo de sistema | Radio 3 | |
| 38 | — |  | Unexplainable | Vox | |
| 38 | 88 | P | Principio de Incertidumbre | Canal Extremadura | |
| 39 | — | C | Cienciaes.com | cienciaes.com | |
| 40 | — |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 40 | — | D | Domingo de Ciencia | doctorfision | |
| 41 | 4 | E | Espacio en blanco | Radio Nacional | |
| 42 | — |  | Curious Cases | BBC Radio 4 | |
| 44 | 64 |  | A Question of Science | The Francis Crick Institute | |
| 44 | — | S | Scientificast, la scienza come non l'hai mai sentita | Scientificast | |
| 45 | — |  | Ologies with Alie Ward | Alie Ward | |
| 46 | — |  | Universo curioso de la NASA | National Aeronautics and Space Administration (NASA) | |
| 48 | — | L | Los Barberos | Los Barberos | |
| 48 | — | L | La aventura de la vida | Félix Rodriguez de la Fuente | |
| 49 | — | N | National Geographic en Español | Aftersight | |
| 50 | 55 | L | Les idées larges | ARTE Radio | |
| 51 | — |  | La Conversation scientifique | France Culture | |
| 52 | 61 | B | Biología de Tranquis | Nico Palanca | |
| 52 | 118 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 53 | — | A | A Ciencia Cierta | meteolp | |
| 53 | — |  | Science In Action | BBC World Service | |
| 54 | 2 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 54 | — |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 55 | — | T | The Criminology Academy | Jose Sanchez and Jenn Tostlebe | |
| 56 | — | H | Hablando de psicología | Facultad de Psicología-UNED | |
| 57 | 53 | F | Filosofía, Psicología, Historias | Hernán Melana | |
| 58 | — | A | Astronomía | Martin Ostios Arias | |
| 58 | — | C | Ciencia Fresca - Cienciaes.com | Jorge Laborda y Ángel Rodríguez Lozano | |
| 59 | 28 | P | Podcasts de Física | fisicapodcasts | |
| 60 | — | L | Loose, Vague, and Indeterminate | George Mason Economics Society | |
| 60 | — | T | The Naked Mole Rat | libo/libo | |
| 60 | 18 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 61 | — | E | El último humanista | Fernando Espí Forcén | |
| 62 | — |  | Overshoot: Navigating a world beyond 1.5°C | Planet B Productions | |
| 63 | 44 | N | Notas de Naturaleza | Iván Vega | |
| 63 | — |  | Science Vs | Spotify Studios | |
| 63 | — | C | Ciencia EXtrema - Cienciaes.com | cienciaes.com | |
| 65 | — | P | Philosophy | Cambridge University | |
| 65 | — |  | CrowdScience | BBC World Service | |
| 66 | 78 | C | Criminología sin filtros | Christian Quaglia | |
| 66 | — | T | The Received Wisdom - Shobita Parthasarathy | Unknown | |
| 66 | — |  | When Science Finds a Way | Wellcome | |
| 66 | 49 | A | Astro Podcast | Astro Podcast | |
| 67 | — |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 67 | 51 |  | Manifold | Steve Hsu | |
| 67 | — | P | Píldoras de Física | Max Alvarez | |
| 68 | — | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 68 | — |  | Science Magazine Podcast | Science Magazine | |
| 69 | — |  | Curiosity Weekly | Discovery | |
| 70 | — | B | Boring History for Sleep | Velvet | |
| 71 | — | W | What the Field?! A podcast by CrowdFarming | CrowdFarming | |
| 71 | — |  | Почему мы еще живы | libo/libo | |
