Andrew Gordon Cudworth MRCP (16 March 1939 – 11 October 1982) was an English medical researcher who specialised in immunology and diabetes.

Andrew Cudworth was born in 1939 and graduated from the University of Liverpool School of Medicine in 1963.

He joined the British Army as a medical officer after his graduation, serving for five years and earning the rank of major.

His scientific interest in diabetes and immunology led him to discover soon afterwards that the more severe form of diabetes, which necessitated insulin and usually occurred in children, was linked to a specific genetic marker, and could be detected on a blood test.

[3] This remains the common terminology to differentiate the two forms of diabetes mellitus.