Luis Vicente Velasco de Isla (February 9, 1711 - July 31, 1762) was a Spanish sailor and commander in the Royal Spanish Navy. He is known for his valiant defense against the British expedition against Cuba in 1762, during which action he was killed.
Born at Noja, Cantabria, he became a sailor at the age of 15 and saw his first action against the Barbary pirates. He participated in the Conquest of Oran in 1732.
In 1742 he was in command of a frigate with 30 guns, when he attacked two British ships with more guns, capturing one and sinking the other. He rescued the British crew and arrived in Havana with more prisoners than his own crew. in 1746 he captured another British frigate with 36 guns and 150 men. In 1754 King Ferdinand VI of Spain gave him command of the Ship of the line, "La Reina".
During the Seven Years' War the British sent an expedition against Cuba in 1762 with a fleet of 23 ships, 24 frigates and 150 transport and support ships, carrying an invasion army of 14,000 men, later reinforced by another 4,000 men, under command of Admiral George Pocock. 10,000 men embarked under command of George Keppel, 3rd Earl of Albemarle and conquered the heights, which the governor of Cuba, Juan de Prado had left undefended.
Velasco defended the vital Morro Castle with 64 heavy guns and a garrison of 700 men. On July 1, the British launched a combined land and naval attack on the Morro. The fleet detached four ships of the line for this purpose: HMS Stirling Castle, HMS Dragon, HMS Marlborough and HMS Cambridge. The naval and land artilleries simultaneously opened fire on the Morro. However, naval guns were ineffective, the fort being located too high. Counter-fire from 30 guns of the Morro inflicted 192 casualties and serious damage to the four ships of the line, forcing them to withdraw.