Commander Charles Ralfe "Tommy" Thompson, CMG, OBE (22 November 1894 – 11 August 1966) was a British naval officer and Prime Ministerial aide-de-camp.
A sailor from a young age, he worked in the submarine service of the Royal Navy during the first world war.
When Waistell retired several years later, Thompson served as personal assistant for several successive Admirals, until finally being positioned as the first permanent Flag Lieutenant to the First Lord of the Admiralty by Sir Samuel Hoare.
During World War II, Thompson was rarely absent from Churchill's side and was present during major conferences and events in London and abroad.
Thompson retired in 1945 alongside Churchill, ending his naval career with the rank of Commander.