Samuel Barnett Schryver FRS (15 March 1869 – 21 August 1929) was a British biochemist.

Among other subjects, his work studied autolysis of tumours, gastric juice in diseases of the stomach, and coagulation.

[5] He worked as Demonstrator in Chemistry at University College Liverpool from 1893 until 1897, and then as a researcher at the Wellcome Research Laboratories until March 1901,[2] when he was appointed Lecturer in Physiological Chemistry at University College London.

[4] In 1907 Schryver began working as a chemist at the Research Institute of the Cancer Hospital, and in 1913 joined the faculty of the Imperial College of Science,[4] becoming full Professor in 1920.

He was married to Elsie Naomi Davis, sister of poet Nina Salaman.