Walter Butler, 1st Marquess of Ormonde, KP (5 February 1770 – 10 August 1820) was an Irish peer and politician.
Partly to sustain his extravagant lifestyle, Walter gave up his hereditary right to the grant of the prisage of the wines of Ireland for an enormous sum of money.
He served as Governor and Custos Rotulorum of County Kilkenny and was a Privy Counsellor in Ireland.
[1] He was the son of John Butler, 17th Earl of Ormonde and Frances Susan Elizabeth Wandesford.
Walter left debts of some £450,000 on his death, and as a result The Derbyshire properties were sold, and Richard Arkwright junior reunited Sutton Scarsdale Hall with the estate.