William Hare, 3rd Earl of Listowel, KP, JP (29 May 1833 – 5 June 1924), styled Viscount Ennismore from 1837 to 1856, was an Irish peer and Liberal politician.
Listowel was the eldest son of William Hare, 2nd Earl of Listowel of Convamore House, Ballyhooly, County Cork, and Maria Augusta, widow of George Wyndham of Cromer Hall, Norfolk, and second daughter of Vice-Admiral William Lukin Windham of Felbrigg Hall.
He succeeded his father in the earldom in 1856 but as this was an Irish peerage it did not entitle him to a seat in the House of Lords.
On 8 December 1869 he was created Baron Hare, of Convamore in the County of Cork, in the Peerage of the United Kingdom,[1] which gave him the immediate right to sit in the House of Lords.
[1] Lord Listowel married Lady Ernestine Mary, younger daughter of Ernest Brudenell-Bruce, 3rd Marquess of Ailesbury, in 1865.