Sir Oliver St George, 1st Baronet

Sir Oliver St George, 1st Baronet (died October 1695) was an Irish Member of Parliament.

Oliver St George was the son of Sir George St George, of Carrickdrumrusk, and grandson of Richard St George, Clarenceux King of Arms, His brother was George St George.

In February 1658 knighted by Henry Cromwell, Lord Deputy of Ireland (this honour passed into oblivion with the Restoration in May 1660). In January 1659 Lord Montgomery, Sir Oliver and others took control of Dublin Castle and made Jones and two of his colleges prisoner. They set up a Council of Officers assumed the government of Ireland, and summon a Cconvention of Estates (or Convention Parliament). The Convention accepted Charles's Declaration of Breda and proclaimed him King of Ireland.

After the Restoration St George was knighted by Charles II in Whitehall on 11 July 1660, and was appointed a Commissioner of Irish Affairs. Later the same year on 5 September he was created a Baronet, of Carrickdrumrusk in the county of Leitrim, in the Baronetage of England. King Charles II also made him a member of the Irish Privy Council.

Between 1692 and 1693 Sir Oliver represented County Galway in the Irish House of Commons. He died in October 1695.

St George married, before 1652, Olivia, widow of George Thornton and daughter of Michael Beresford of Coleraine and Mary, daughter of John Leak, by whom he had four children.

He was succeeded in the baronetcy by his son George St George, who was later created Baron St George. Another son, Oliver St George, was also appointed to the Irish Privy Council. He also had two daughters, Olivia and Katherine. Olivia married firstly Sir Robert Colville of Newtown, and secondly Pierce Butler, 4th Viscount Ikerrin, and died in 1724. Katherine married Sir Edward Crofton, 2nd Baronet, and died in 1690.