George Lowther (died 1723) was an 18th-century English pirate who, although little is known of his life, was active in the Caribbean and Atlantic. One of his lieutenants was Edward Low.
Not much is known about him before becoming the 2nd Mate on the slave ship, Gambia Castle, which was under the command of Captain Charles Russell; however Lowther was more popular with the crew, as Russell seemed to care more about his shipment of slaves than for his men. Russell distrusted Lowther, and when he attempted to have him flogged many crew members took Lowther’s side and defended him, causing a schism among the crew.
Also on board, after retreating from their fort, was a Captain Massey, along with a company of soldiers under his command. One night, while Captain Russell was offboard, Massey and Lowther decided to set sail without him. Massey intended to return to England, but Lowther, the crew, and Massey's own soldiers disagreed. Lowther was made captain and he renamed the Gambia Castle, Delivery. They attacked many ships but when Massey wanted to pillage a village on shore, he lost the vote as the risk was deemed too great. Lowther was able to obtain a smaller ship, named the Happy Delivery, and parted ways with Massey and his men.
Lowther left for the Carolinas where he developed the tactic of ramming his ship into another, while his men boarded and looted it. Around 1721 he left for the Grand Caymans where he ran into the Greyhound captained by Benjamin Edwards. Lowther gave a cannon shot for a signal. Greyhound responded with a broadside, (simultaneous discharge of all cannons on a side of a ship.) The pirates boarded the Greyhound, possibly killed the entire crew and burnt the ship. Lowther had many ships under his command by now, but when he sailed his fleet to Guatemala they were attacked by natives and he was forced to leave some ships and men behind.
His crew and supplies were all transferred to the Revenge. In 1722 he sailed to a secluded island called Blanquilla. However, before landing he was spotted by Walter Moore the commander of the HMS Eagle. Lowther was able to escape to the island by slipping out his cabin window, along with a dozen crewmen, only four made it to shore. After an extensive search Lowther's body was found. He had shot himself in the head rather than be taken prisoner.