George Clarke, of All Souls, Oxford, was an English architect, print collector and Tory politician who sat in the English and British House of Commons between 1702 and 1736.

The Secretary at War was a political position in the English and later British government, with some responsibility over the administration and organization of the Army, but not over military policy. The Secretary at War ran the War Office. After 1794 it was occasionally a Cabinet-level position, although it was considered of subordinate rank to the Secretaries of State. The position was combined with that of Secretary of State for War in 1854 and abolished in 1863.