Frank Cook FRCS FRCOG (6 November 1888 – 25 February 1972) was a Beit Memorial Research Fellow, an eminent obstetric and gynaecological surgeon at Guy's Hospital, Hunterian Professor of the Royal College of Surgeons in London (1917 and 1924), consulting surgeon at the Chelsea Hospital for Women and a Freeman of the Worshipful Society of Apothecaries.