Cylon may refer to:
Places Cylon, Wisconsin, a town in St. Croix County, US Cylon (community), Wisconsin, an unincorporated community in St Croix County, US
People Cylon of Athens, who attempted a coup in 632 BCE Cylon of Croton, who led a revolt against the Pythagoreans probably around 509 BC
Other uses Cylon (Battlestar Galactica), a type of sentient robot on the television series Battlestar Galactica
See also Zylon, synthetic fiber Ceylon, a former name for Sri Lanka