Vice Admiral Sir John Willson Musgrave Eaton, KBE, CB, DSO, DSC (3 November 1902 – 21 July 1981^[1]) was a Royal Navy officer who served as Commander-in-Chief America and West Indies Station from 1955 to 1956.

Eaton joined the Royal Navy in 1916 and served in the First World War.^[2] After the war he served in destroyers and then in submarines.^[2]

Eaton served in the Second World War and commanded the destroyers HMS Venetia, HMS Mohawk, HMS Somali and HMS Eskimo.^[2]

After the war he became Captain of the cruiser HMS Sheffield and then Captain of the training school HMS St Vincent.^[2] He was appointed Director at the Royal Navy Staff College, Greenwich in 1949, Flag Officer commanding HM Australian Fleet in 1951 and Flag Officer commanding the Reserve Fleet in 1954.^[2] His last appointment was as Commander-in-Chief, America and West Indies Station and Deputy Supreme Allied Commander Atlantic in 1955; he took part in Operation Strikeback (a major NATO training exercise) in 1957 and retired in 1958.^[2]

His life is commemorated by an inscription at the Church of St. Mary the Virgin in Kelvedon in Essex.^[3]