Euan Ernest Richard Uglow (10 March 1932 – 31 August 2000) was a British painter. He is best known for his nude and still life paintings, such as German Girl and Skull.
Born in London, he studied at the Camberwell School of Art. His instructors included William Coldstream, whose meticulous method of painting from life involved repeated, careful measurements. Uglow continued his studies under Coldsteam at the Slade School of Art until 1954, and later taught there. Uglow's adaptation of Coldstream's method of painting included the use of a metal instrument of his own design with which he could take the measure of an object or interval to compare against other objects or intervals in his field of vision. By the use of such empirical measurements he contrived to paint what the eye sees without the use of conventional perspective. Uglow's finished paintings display the many small horizontal and vertical markings with which he recorded these coordinates so that they could be verified against reality.
Public collection holding Uglow's works include the Tate Gallery, the Metropolitan Museum of Art, and the National Museum of Wales.