Captain Archibald Kennedy, 11th Earl of Cassilis (bef. 1736 – 30 December 1794) was a Scottish peer, the son of Archibald Kennedy, the descendant of the second son of the 3rd earl. He lived in New York City at 1 Broadway in the Kennedy mansion until he was recalled to succeeded to the Earldom on the death of the 10th earl, who had died without male issue.

He married (1) Katherine Schuyler, before June 1765.

He married (2) Anne Watts (sister of John Watts), on 27 April 1769. They had three children:

• Archibald Kennedy, 1st Marquess of Ailsa
  Archibald Kennedy, 1st Marquess of Ailsa
  Archibald Kennedy, 1st Marquess of Ailsa KT, FRS , styled Lord Kennedy between 1792 and 1794 and known as The Earl of Cassilis between 1794 and 1831, was a Scottish peer.-Background:...
  
   (1770–1846)
• Hon. John Kennedy (1771–1859)
• Hon. Robert Kennedy (1773–1843) m. 22 March 1794 Jane Macomb daughter of merchant Alexander Macomb and Catherine Navarre. (Sophia Eliza, daughter of Robert and Jane (Macomb) Kennedy, married John Levett
  Levett
  Levett is an Anglo-Norman territorial surname deriving from the village of Livet-en-Ouche, now Jonquerets-de-Livet, in Eure, Normandy. Ancestors of the earliest Levett family in England, the de Livets were lords of the village of Livet, and undertenants of the de Ferrers, among the most powerful of...
  
   of Wychnor Park
  Wychnor Hall
  Wychnor Hall is an early 18th century country house near Burton on Trent, Staffordshire. Formerly owned by the Levett family, descendants of Theophilus Levett, Steward of the city of Lichfield in the early eighteenth century, the hall has been converted to a Country Club. It is a Grade II listed...
  
   and Packington Hall
  Packington Hall (Staffordshire)
  Packington Hall in Staffordshire, England was a country mansion designed by architect James Wyatt in the 18th century that was the home of the Levett family for many generations...
  
  , Staffordshire. Their son, Capt.
  64th (2nd Staffordshire) Regiment of Foot
  The 64th Regiment of Foot was an infantry regiment of the British Army. The regiment was created as the 2nd Battalion, 11th Regiment of Foot in 1756, redesignated as the 64th Regiment of Foot in 1758, and took a county title as the 64th Regiment of Foot in 1782...
  
   Robert Thomas Kennedy Levett, DL
  Deputy Lieutenant
  In the United Kingdom, a Deputy Lieutenant is one of several deputies to the Lord Lieutenant of a lieutenancy area; an English ceremonial county, Welsh preserved county, Scottish lieutenancy area, or Northern Irish county borough or county....
  
  , was named for his grandfather Kennedy.)

His great-grandsons included Sir John Gordon Kennedy K.C.M.G. (1836–1912), who became an eminent diplomat, Admiral Sir William Robert Kennedy

William Kennedy (Royal Navy officer)

|-...

 G.C.B.

Order of the Bath

The Most Honourable Order of the Bath is a British order of chivalry founded by George I on 18 May 1725. The name derives from the elaborate mediæval ceremony for creating a knight, which involved bathing as one of its elements. The knights so created were known as Knights of the Bath...

 (1838–1916), who became Commander-in-Chief, The Nore, and Gilbert George Kennedy

Gilbert G. Kennedy

Gilbert George Kennedy was a Scottish amateur sportsman who played for the Scottish XI in the second international football match against England. He was also a regular member of the Wanderers club and an occasional cricketer...

 (1844–1909) who played for the Scottish XI in the second international football match

England v Scotland representative matches (1870–1872)

Between 1870 and 1872, the Football Association organised five representative association football matches between teams from England and Scotland, all held in London. The first of these matches was held at The Oval on 5 March 1870, and the fifth was on 21 February 1872. The matches, which were...

against England.

He succeeded to the titles of 11th Earl of Cassilis, and 13th Lord Kennedy on 18 December 1792.