William Allen Daley

Sir William Allen Daley (19 February 1887 - February 1969) was a British medical officer of health at the time of the formation of the UK's National Health Service (NHS).

Allen Daley was born in Bootle in 1887. He qualified as a medical doctor in 1912, and married Mary Toomey in 1913. Daley was responsible for the organisation of London's health services during World War 2, and was knighted in the 1944 Birthday Honours. Daley retired in 1952.

Daley and his wife had two children, including medical doctor and author Raymond Daley (1917-1989).