Cajal:
*
Santiago Ramón y Cajal
Santiago Ramón y Cajal (; 1 May 1852 – 17 October 1934) was a Spanish neuroscientist, pathologist, and histologist specializing in neuroanatomy and the central nervous system. He and Camillo Golgi received the Nobel Prize in Physiology or Med ...
, Spanish histologist, physician, pathologist
*
Fortún Garcés Cajal
Fortún Garcés Cajal (died 1146) was a Navarro- Aragonese nobleman and statesman, perhaps "the greatest noble of Alfonso the Battler's reign". He was very wealthy in both land and money, and could raise two to three hundred knights for his retin ...
, medieval Spanish nobleman
*
Nicolae Cajal (1919–2004), Romanian Jewish physician, academic, politician, philanthropist
*
Cajal Institute, a neuroscience research center in Madrid, Spain.
*
Cajal cells
**
Cajal–Retzius cell
Cajal–Retzius cells (CR cells) (also known as Horizontal cells of Cajal) are a heterogeneous population of morphologically and molecularly distinct reelin-producing cell types in the marginal zone/layer I of the developmental cerebral cortex an ...
**
Interstitial cell of Cajal
Interstitial cells of Cajal (ICC) are interstitial cells found in the gastrointestinal tract. There are different types of ICC with different functions. ICC and another type of interstitial cell, known as platelet-derived growth factor receptor ...
(ICC)
*
Cajal bodies (CBs)
*
Cajal (crater), a tiny lunar impact crater
{{disambig, surname