|Baronry Hamilton of Hameldon|
|Creation date||20 May 1776|
|Peerage||Peerage of Great Britain|
|First holder||Elizabeth Hamilton, 1st Baroness Hamilton of Hameldon|
|Present holder||Torquhil Campbell, 13th Duke of Argyll|
|Heir apparent||Archibald Campbell, Marquess of Lorne|
|Remainder to||The baroness' heirs male of the body lawfully begotten|
Baron Hamilton of Hameldon, of Hambledon in the County of Leicester, is a title in the Peerage of Great Britain, held by the Duke of Hamilton from 1790 to 1799 and by the Duke of Argyll since 1799.
It was created in 1776 for Elizabeth Gunning (Duchess of Hamilton), wife since 1752 of James Douglas-Hamilton, 6th Duke of Hamilton. The Duke of Hamilton died in 1758, and his widow remarried the following year, to John Campbell, who later became Marquess of Lorne in 1761 and 5th Duke of Argyll in 1770. She died in 1790, and her Barony passed to her only surviving son from her first marriage, the 8th Duke of Hamilton. On his death without male issue, the barony passed to his half-brother the Marquess of Lorne, the Duchess's eldest surviving son by her second marriage. Lord Lorne succeeded his father as 6th Duke of Argyll in 1806, and the Barony of Hamilton has since remained united with that title.
The arms of Elizabeth Gunning, Baroness Hamilton of Hameldon, were her paternal arms of Gunning augmented with a fess ermine and ducal crowns for the doves: Gules, on a fess ermine between three doves argent ducally crowned or as many crosses pattée of the first.
see Duke of Argyll for further succession.