Oscar Marín is Professor of Neuroscience and Director of the Centre for Developmental Neurobiology at King's College London, where he leads a multidisciplinary research group investigating the development and function of the mammalian cerebral cortex, the brain's largest and most complex structure.

He has received several awards, including the De Spoelberch Prix (2014) and the Ramón y Cajal Medal from the Spanish Royal Academy of Sciences (2017), for pioneering work in developmental neurobiology, in particular his contributions to understanding the assembly of neuronal circuits in the cerebral cortex and the role of interneuron dysfunction in neuropsychiatric disorders such as schizophrenia.

Marín was a founding member of the Scientific Council of the European Research Council, which was created to support investigator-driven frontier research across all fields. Marín has also fostered collaborative research on the neurobiology of developmental brain conditions as Director of the MRC Centre for Neurodevelopmental Disorders since 2016.