The title Earl Cawdor, of Castlemartin in the County of Pembroke, was created in the Peerage of the United Kingdom in 1827.

Lord Cawdor holds the subsidiary titles Viscount Emlyn, of Emlyn in the County of Carmarthen (1827), in the Peerage of the UK, and Baron Cawdor, of Castlemartin in the County of Pembroke (1796), in the Peerage of Great Britain.

Barons Cawdor (1796)

• John Campbell, 1st Baron Cawdor (1753-1821)
• John Frederick Campbell, 2nd Baron Cawdor (1790-1860) (became Earl Cawdor in 1827)

Earls Cawdor (1827)

• John Frederick Campbell, 1st Earl Cawdor (1790-1860)
• John Frederick Vaughan Campbell, 2nd Earl Cawdor (1817-1898)
• Frederick Archibald Vaughan Campbell, 3rd Earl Cawdor (1847-1911)
• Hugh Frederick Vaughan Campbell, 4th Earl Cawdor (1870-1914)
• John Duncan Vaughan Campbell, 5th Earl Cawdor (1900-1970)
• Hugh John Vaughan Campbell, 6th Earl Cawdor (1932-1993)
• Colin Robert Vaughan Campbell, 7th Earl Cawdor (b. 1962)

Heir Presumptive: Frederick William Campbell (b. 1965) (Lord Cawdor's younger brother)