Lieutenant-Colonel Sir Matthew Nathan GCMG PC (Ire) (3 January 1862 – 18 April 1939) was a British soldier and colonial administrator, who variously served as the governor of Sierra Leone, Gold Coast, Hong Kong, Natal and Queensland. He was Under-Secretary for Ireland from 1914 to 1916, and was responsible, with the Chief Secretary, Augustine Birrell, for the administration of Ireland in the years immediately preceding the Easter Rising.