There have been two Baronetcies created for persons with the surname Fetherston, one in the Baronetage of England and one in the Baronetage of Ireland. Both are extinct.

The Fetherston Baronetcy of Blakesware, Hertfordshire was created in the Baronetage of England for Heneage Fetherston on 4 Dec 1660.

The Fetherston Baronetcy of Ardagh, County Longford was created in the Baronetage of Ireland for Ralph Fetherston on 4 August 1776.

Fetherston Baronets, of Blakesware, Hertfordshire (1660)

• Sir Heneage Fetherston, 1st Baronet (c.1628–23 October 1711)
• Sir Henry Fetherston, 2nd Baronet (c.1654–17 October 1746) Baronetcy extinct on his death

Fetherston Baronets, of Ardagh, County Longford (1776)

• Sir Ralph Fetherston, 1st Baronet (born by 1731–3 Jun 1780)
• Sir Thomas Fetherston, 2nd Baronet (1759–19 Jul 1819) MP for Longford 1801-1819
• Sir George Ralph Fetherston, 3rd Baronet (4 Jun 1784–12 Jul 1853) MP for Longford 1819–1830
• Sir Thomas Francis Fetherston, 4th Baronet (1800–28 Aug 1853)
• Sir ThomasJohn Fetherston, 5th Baronet (22 Jul 1824–21 Sep 1869)
• Sir George Ralph Fetherston, 6th Baronet (8 Apr 1852–11 Feb 1923) Baronetcy extinct on his death