Biologists from Spain

The following people are considered by Pantheon to be the top 10 most legendary Spanish Biologists of all time. This list of famous Spanish Biologists is sorted by HPI (Historical Popularity Index), a metric that aggregates information on a biography's online popularity. Visit the rankings page to view the entire list of Spanish Biologists.

1. #1

   

   Santiago Ramón y Cajal

   1852 - 1934

   HPI 73.7481 langs

   Santiago Ramón y Cajal is most famous for his work on neurons. He was the first person to show that the neuron is the basic unit of the...Read moreShow less

   Santiago Ramón y Cajal is most famous for his work on neurons. He was the first person to show that the neuron is the basic unit of the nervous system.

2. #2

   

   Ibn al-Baitar

   1197 - 1248

   HPI 68.7638 langs

   Ibn al-Baitar was a 12th century physician and botanist who wrote the Book of Simple Drugs. He is most famous for his work on drugs and...Read moreShow less

   Ibn al-Baitar was a 12th century physician and botanist who wrote the Book of Simple Drugs. He is most famous for his work on drugs and plants.

3. #3

   

   Antonio José Cavanilles

   1745 - 1804

   HPI 62.9323 langs

   Spanish botanist (1745-1804)

4. #4

   

   Francisco Manuel Blanco

   1778 - 1845

   HPI 61.0318 langs

   Spanish botanist (1778–1845)

5. #5

   

   Margarita Salas

   1938 - 2019

   HPI 60.1430 langs

   Margarita Salas, a pioneering Spanish biochemist and molecular geneticist from Asturias, is most famously known for discovering and...Read moreShow less

   Margarita Salas, a pioneering Spanish biochemist and molecular geneticist from Asturias, is most famously known for discovering and characterizing the Φ29 DNA polymerase enzyme from the bacteriophage Φ29, which she patented and which revolutionized DNA amplification by enabling faster, simpler, and more reliable replication of trace amounts of DNA—making it the highest-grossing patent in the history of Spain's National Research Council (CSIC) and widely applied today in forensics, oncology, archaeology, and biotechnology for genomic testing. Through her groundbreaking work on this enzyme, she introduced and advanced molecular biology as a field in Spain after training with Nobel laureate Severo Ochoa in the US, authored over 350 publications, mentored generations of scientists, and became a trailblazing figure for women in science amid Franco-era gender barriers. Surprisingly, despite facing significant prejudice as a woman in mid-20th-century Spanish academia—where higher education and careers were often restricted for females—she was awarded the hereditary title of Marchioness of Canero by King Juan Carlos I in recognition of her contributions, and shortly before her death received the 2019 European Inventor Award in both Lifetime Achievement and Popular Prize categories.

6. #6

   

   Francisco J. Ayala

   1934 - 2023

   HPI 58.9526 langs

   Spanish-American philosopher and biologist (1934–2023)

7. #7

   

   José Antonio Pavón Jiménez

   1754 - 1840

   HPI 58.3416 langs

   Spanish botanist (1754-1840)

8. #8

   

   Francisco Hernández de Toledo

   1515 - 1587

   HPI 58.1818 langs

   Spanish naturalists and physician (1515-1587)

9. #9

   

   Hipólito Ruiz López

   1754 - 1816

   HPI 58.1618 langs

   Spanish botanist (1754-1816)

10. #10

    

    Abu al-Abbas al-Nabati

    1166 - 1239

    HPI 57.7615 langs

    Andalusian botanist (1166-1239)