Alexander McDonnell, 9th Earl of Antrim

Alexander Randal Mark McDonnell, 9th Earl of Antrim, FRSA (born 3 February 1935) is the son of the late Randal John Somerled McDonnell, 8th Earl of Antrim (1911–1977). As the heir to his father's titles, he was styled Viscount Dunluce from his birth until 1977. He lives mostly at his ancestral home, Glenarm Castle, County Antrim, Northern Ireland.

Antrim was educated at Downside School, Christ Church, Oxford and the Ruskin School of Drawing & Fine Art. He subsequently worked as an art restorer for the Tate Gallery, holding the posts of Keeper of Conservation, 1975–1995, and Director of Collection Services, 1990–1995. He was also a Director of Ulster Television from 1982 to 2000, Chairman of Northern Salmon Co. Ltd, from 2000 to 2008, and Prime Warden of the Worshipful Company of Fishmongers for the year 1995–1996.

Antrim has been married twice and has three children:

• Lady Flora Pennybacker (born 1963)
• Lady Alice McDonnell (born 1964)
• Randal Alexander St John McDonnell, Viscount Dunluce (born 1967) m. Aurora Gunn.

• Director of Ulster Television
• Fellow of the Royal Society of Arts
• Member of the Marine Biological Association
• Patron of the Arts Society of Ulster