Sir Norman Purvis Walker FRCPE (2 August 1862, Dysart – 7 November 1942, Balerno) was a Scottish dermatologist, and physician-in-charge of the Skin Department at the Royal Infirmary of Edinburgh.

[3] In 1883, Walker started in his first post, as resident physician to Claude Muirhead at the Royal Infirmary of Edinburgh, and for the next five years he was in general practice in Dalston, Cumberland.

His first stop was in Vienna, where Hans von Hebra and Moriz Kohn Kaposi continued the elder Hebra's tradition; in Prague Walker devoted much of his time to the study of histopathology and bacteriology in the laboratory of Professor Philipp Josef Pick; and in Hamburg he became a student of Paul Gerson Unna, one of the pioneers in dermapathology.

Additionally, Walker gave lectures on diseases of the skin at the University of Edinburgh and at the royal colleges, and had a private practice as well as a special clinic to treat lupus vulgaris, which he continued after he retired.

In the late 1920s, he produced a report on the recognition of Indian qualifications contributed to improving medical education in India.

[2] Norman Walker translated G. H. A. Hansen and C. Looft's German text as Leprosy in its Clinical and Pathological Aspects (1895), and Paul Gerson Unna’s Histopathologie der Hautkrankheiten as The Histopathology of Diseases of the Skin (1896).