Somerset Richard Butler, 3rd Earl of Carrick (28 September 1779 – 4 February 1838) was the son of Henry Thomas Butler, 2nd Earl of Carrick and Sarah Taylor. He succeeded to the title of 3rd Earl of Carrick and 10th Viscount Ikerrin upon his father's death on 20 July 1813. He was married twice, first on 1 September 1811 to Anne Wynne, daughter of Owen Wynne and Lady Sarah Cole. They had two children. He married secondly on 12 February 1833 Lucy French, daughter of Arthur French. They had three children.

Lord Carrick served as an Irish representative peer

Representative peer

In the United Kingdom, representative peers were those peers elected by the members of the Peerage of Scotland and the Peerage of Ireland to sit in the British House of Lords...

 from 1819 to 1838.

Children

by his first wife Sarah

• Lady Anne Margaret Butler (died 15 May 1901) married George Whitelocke Whitelocke-Lloyd
• Lady Sarah Juliana Butler (29 July 1812 – 28 April 1905) married William Thomas Le Poer Trench, 3rd Earl of Clancarty

by his second wife Lucy French

• Lady Lucy Maria Butler (died 25 July 1896
• Henry Thomas Butler, 4th Earl of Carrick died at age 12 (February, 1834 – 16 April 1846)
• Somerset Arthur Butler, 5th Earl of Carrick b. 30 January 1835 – 22 December 1901)