Solomon Halbert Snyder (born December 26, 1938) is an American neuroscientist who has made wide-ranging contributions to neuropharmacology and neurochemistry.

Many advances in molecular neuroscience have stemmed from Snyder's identification of receptors for neurotransmitters and drugs, and elucidation of the actions of psychotropic agents.

After a medical residency at the Kaiser Hospital in San Francisco, he served as a research associate from 1963 to 1965 at the National Institutes of Health, where he studied under Julius Axelrod.

He has described novel neurotransmitters, such as the gases nitric oxide and carbon monoxide and the D-isomers of amino acids, including D-serine.

[4] Snyder is also the Director of Drug Discovery at the Lieber Institute for Brain Development in Baltimore, MD.