Major General Francis Fergus O’Farrell c. 1650 to 1712, was an Irish-born professional soldier who served in the Dutch States Army under William III until 1689, when he transferred into the English Army. During the Nine Years' War in 1695, he was cashiered for his premature surrender of the town of Deinze, then reinstated in 1696 and served in the War of the Spanish Succession.