Sir Henry Monck-Mason Moore GCMG, KStJ (1887–1964), was British Governor of Sierra Leone, Kenya and Ceylon.

 

The son of Rev. Edward William Moore, he was educated at Rokeby, KCS, Wimbledon and Jesus College, Cambridge, graduating in 1909. In World War I, he was a Lieutenant in the Royal Garrison Artillery based in Salonika from 1916 to 1919.

 

After serving as Governor of Sierra Leone from 1934 to 1937, he joined the Colonial Department in London as Assistant Under Secretary of State from 1937 to 1939 and Deputy Under Secretary of State from 1939 to 1940.

 

From 1940 to 1944, he was Governor of Kenya and then from 1944 to 1948 he was Governor of Ceylon. After the independence of Ceylon in 1948, he served as Governor-General until 1950.

 

He married Daphne, daughter of William John Benson in 1921. He was the brother of the psychoanalyst Sylvia Payne.