Marquesses of Ailsa (1831)
- Archibald Kennedy, 1st Marquess of Ailsa (1770–1846)
- Archibald Kennedy, Earl of Cassilis (1794–1832)
- Archibald Kennedy, 2nd Marquess of Ailsa (1816–1870)
- Archibald Kennedy, 3rd Marquess of Ailsa (1847–1938)
- Archibald Kennedy, 4th Marquess of Ailsa (1872–1943)
- Charles Kennedy, 5th Marquess of Ailsa (1875–1956)
- Angus Kennedy, 6th Marquess of Ailsa (1882–1957)
- Archibald David Kennedy, 7th Marquess of Ailsa (1925–1994)
- Archibald Angus Charles Kennedy, 8th Marquess of Ailsa (b. 1956)
The heir presumptive is the present holder's younger brother Lord David Thomas Kennedy (b. 1958) married with a son.
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