Olive May Kelso King (30 June 1885 – 1 November 1958) was an adventurer and mountain climber. During World War I she drove ambulances for the Scottish Women's Hospitals and later the Serbian Army. In the final stages of the war she raised money and set up mobile canteens to help feed the Serbian people. In all, she was awarded four medals by the Serbian government for her work during the war. After World War I, King held a senior volunteer position with Girl Guides Australia. During World War II, she worked as an examiner at the Havilland Aircraft factory.