Archibald Kennedy, 1st Marquess of Ailsa

The Most Honourable Archibald Kennedy, 1st Marquess of Ailsa KT, FRS
Portrait by William Owen, 1816
Scottish representative peer
In office 1796–1806
Personal details
Born	Archibald Kennedy February 1770
Died	8 September 1846(1846-09-08) (aged 76)
Spouse	Margaret Erskine ​ ​ (after 1793)​
Children	6, including Archibald, Margaret
Parent(s)	Archibald Kennedy, 11th Earl of Cassilis Anne Watts

Archibald Kennedy, 1st Marquess of Ailsa, KT, FRS (February 1770 – 8 September 1846), styled Lord Kennedy between 1792 and 1794 and known as the Earl of Cassilis between 1794 and 1831, was a Scottish peer.