William Blair-Bell FRCS (28 September 1871 in Rutland House, New Brighton – 25 January 1936 in Shrewsbury) was a British medical doctor and gynaecologist who was most notable as the founder of the Royal College of Obstetricians and Gynecologists in 1929. Blair-Bell was considered the greatest gynaecologist of the 20th century, raising it from what was then a branch of general surgery into a separate medical specialism. He was subject of a biography by Sir John H. Peel.