Barry John Yelverton, 3rd Viscount Avonmore (21 February 1790 – 24 October 1870), was an Irish nobleman.
He was the son of William Yelverton, 2nd Viscount Avonmore, and Mary Reade, eldest daughter of John Reade.
[1] He married, firstly, Jane Boothe, daughter of Thomas Boothe, in 1811 and had the following issue: His first wife having died in 1821, Lord Avonmore married secondly, Cecilia O'Keefe, daughter of Charles O'Keefe and Letitia Yelverton, on 1 August 1822.
They had the following issue: Lord Avonmore died in Dublin and was succeeded in the viscountcy by his third and only surviving son, William.
This biography of a viscount or viscountess in the Peerage of Ireland is a stub.