Field Marshal Richard Boyle, 2nd Viscount Shannon PC (1675 – 20 December 1740) was a British army officer and statesman. After serving as a junior officer at the Battle of the Boyne during the Williamite War in Ireland and at the Battle of Landen during the Nine Years' War, he commanded a brigade of grenadiers during the storming of Vigo during the War of the Spanish Succession. During this engagement the entire French fleet, under the command of the Marquis de Château-Renault, together with the Spanish galleons and transports under Manuel de Velasco, were either captured or destroyed. He also took part in a successful raid on Barcelona three years later. He went on to serve as Commander-in-Chief of the Royal Irish Army throughout the 1720s and 1730s.