Lawrence Percival Coombes DFC, CBE (9 April 1899 – 3 June 1988) was a British-Australian aeronautical engineer who served as the first Chief Superintendent of the Australian Aeronautical Research Laboratories from 1938 until 1964. He had previously worked at the Royal Aircraft Establishment from 1924, and during World War I had served as a pilot in the Royal Naval Air Service and Royal Air Force, becoming a flying ace credited with 15 aerial victories.