Archibald Kennedy, 8th Marquess of Ailsa

Archibald Angus Charles Kennedy, 8th Marquess of Ailsa, 19th Earl of Cassilis, 21st Lord Kennedy, 8th Baron Ailsa, (13 September 1956 – 15 January 2015), was a Scottish peer.

Archibald Angus Charles Kennedy was born on 13 September 1956, the son of Archibald Kennedy, 7th Marquess of Ailsa.

The Marquess of Ailsa is the hereditary Clan Chief of Clan Kennedy. All of the Marquesses are descendant from Anne Watts, mother of Archibald Kennedy, 1st Marquess of Ailsa and descendant of the Schuyler family, the Van Cortlandt family (including Stephanus Van Cortlandt), and the Delancey family of British North America. The title is derived from the island of Ailsa Craig in the Firth of Clyde, which is owned by the family. In 2011, the Marquess put up the island for sale. As of March 2013, the asking price is offers over £1,500,000.

Kennedy succeeded to the titles of 19th Earl of Cassilis, 21st Lord Kennedy, 8th Marquess of Ailsa & 8th Baron Ailsa on 7 April 1994 after the death of his father. Upon his death, he was succeeded by his brother, David Kennedy, 9th Marquess of Ailsa (b. 1958). The 9th Marquess' heir apparent is his son Archibald David Kennedy (born 1995).

In 1979, Lord Ailsa married Dawn Leslie Anne Keen. Together, they had two children:

The 8th Marquess died on 15 January 2015 while visiting a Kennedy clan function in Florida.