Arthur Pomeroy, 1st Viscount Harberton (16 January 1723 – 9/11 April 1798) was an Anglo-Irish politician. He was born in Cork, the eldest son of the Rev John Pomeroy, Archdeacon of Cork, and his wife Elizabeth Donnellan of , County Roscommon. He sat in the Irish House of Commons as the Member of Parliament for County Kildare from 1761 until he was raised to the Irish House of Lords as Baron Harberton in the Peerage of Ireland on 10 October 1783. He was further created Viscount Harberton on 5 July 1791.