In the feudal system, the title overlord refers to a particularly powerful lord, who has power over many people and/or power over other lords. Overlord may also refer to: Operation Overlord, codename for the invasion of Normandy by Allied forces during World War II Mount Overlord, an extinct volcano in Antarctica Overlord meme, an Internet meme relating mock submission Ariakon Overlord, a paintball pistol Overlord system, popular name for structure of British government 1951-3 The HalloWeekends Overlord, the commander of the Screamsters during HalloWeekends at Cedar Point amusement park in Sandusky, Ohio, United States