Ian Campbell, 11th Duke of Argyll

His Grace

The Duke of Argyll
His Grace; The Duke of Argyll
	The Duke in 1953
Predecessor	Niall Campbell, 10th Duke of Argyll
Successor	Ian Campbell, 12th Duke of Argyll
Known for	1963 divorce
Born	Ian Douglas Campbell; 18 June 1903; Paris, France
Died	7 April 1973 (aged 69); Edinburgh, Scotland
Spouse(s)	; The Hon. Janet Gladys Aitken; (m. 1927; div. 1934) ; Louise Hollingsworth Morris Vanneck (m. 1935; div. 1951) ; Margaret Whigham (m. 1951; div. 1963) ; Mathilda Coster Mortimer (m. 1963)
Issue	Lady Jeanne Campbell; Ian Campbell, 12th Duke of Argyll; Lord Colin Ivar Campbell; Lady Elspeth Campbell
Parents	Douglas Campbell; Aimee Lawrence
Member of the House of Lords; Lord Temporal
	In office; 31 July 1963 – 7 April 1973; Hereditary Peerage
Succeeded by	Ian Campbell, 12th Duke of Argyll
Military career
Allegiance	United Kingdom
Service / branch	British Army
Years of service	1939–1945
Rank	Captain
Service number	547098
Unit	Argyll and Sutherland Highlanders
Battles / wars	World War II Battle of France; ;

Ian Douglas Campbell, 11th and 4th Duke of Argyll (18 June 1903 – 7 April 1973), was a Scottish peer and the Chief of Clan Campbell (Scottish Gaelic: MacCailein Mòr). He is chiefly remembered for his unhappy marriage to, and scandalous 1963 divorce from, his third wife, Margaret Whigham.