Leila Alice Denmark (née Daughtry; February 1, 1898 – April 1, 2012) was an American pediatrician. She was the world's oldest practicing pediatrician until her retirement in May 2001 at the age of 103, after 73 years. She was a supercentenarian, living to the age of 114 years, 60 days. On December 10, 2011, at age 113 years 312 days, she became one of the 100 oldest people ever.