Sir William Gore, 3rd Baronet PC (Ire) (died 1700) was an Anglo-Irish baronet and magistrate. He was the oldest son of Sir Ralph Gore, 2nd Baronet and his wife Anne Caulfeild, second daughter of . In 1661, he succeeded his father as baronet. Gore was appointed Custos Rotulorum of Leitrim in 1684, an office he held until his death in 1700. He was sworn off the Privy Council of Ireland.