Sir George Lenthal Cheatle, KCB, CVO, FRCS (13 June 1865 – 2 January 1951) was a British surgeon who made important contributions to the diagnosis and treatment of breast cancer.

[1] Cheatle was deeply influenced by Lord Lister, and this showed up not only in his interest in research and close attention to detail, but also in his dress and physical mannerisms.

Henry, but the Cheatle-Henry procedure for femoral and obturator hernias did not become widely used until after World War II.

He also showed that simple hyperplasia and Papillomas were not malign, as was generally thought, but were in fact benign.

[8] Based on his studies of whole-organ sections, Cheatle proposed that epithelial proliferation leading to cancer had lobular rather than ductal origins.

[10] In a 1922 article in the British Medical Journal Cheatle said that by the time breast cancer became visible it was often too late to be cured by surgery.

[12] Cheatle was a contemporary of Joseph Colt Bloodgood, who was studying the pathology and clinical treatment of prolifierative duct lesions of the breast in Johns Hopkins Hospital in the United States during the same period.

[16][17] He was made a Chevalier of the French Legion of Honour and a Knight Grand Cross of the Order of the Crown of Italy.

[1] In 1931 Cheatle was awarded the Walker Prize by the Royal College of Surgeons for work on the Pathology and Therapeutics of Cancer.

[4] Cheatle married at the Savoy Chapel on 2 October 1902 Clara Denman Jobb, daughter of Colonel Keith Jopp, of the Royal Engineers.