Sir Edward St John Jackson, KCMG, KBE, QC (14 October 1886 – 29 August 1961) was a British colonial judge and administrator.

The son of Sir Henry Moore Jackson, and his wife, Emily (née Shea), Edward St John Jackson was raised in his mother's Roman Catholic faith.

[2] Between 1937 and 1940, Jackson was Legal Secretary to the Government of Malta, and he was the Colony's Lieutenant Governor between 1940 and 1943.

[citation needed] Jackson was appointed King's Counsel (Ceylon) in 1929.

He was made a knight bachelor in 1933, a KBE in 1941 (having previously been appointed an OBE in 1918), and KCMG in 1943.