Illapa (also known as Illapa, Illapa, or Illapa in Quechua) is a deity in the pre-Columbian Inca mythology, often associated with weather, lightning, thunder, rain, and fertility. The name Illapa translates to "lightning" in the Quechua language, which was widely spoken in the Inca Empire. In Aymara, another indigenous language of the Andes, the deity is known as Tunupa. Illapa was considered one of the most important gods in the Inca pantheon, as agriculture and weather were crucial to the survival and prosperity of the Inca civilization. The deity was often depicted as a man with a sling, throwing lightning bolts, and was believed to control the elements, bringing both life-giving rain and destructive storms. Illapa's role was central to Inca rituals and ceremonies, particularly those related to agriculture and the solstices. The Incas would perform various rituals, including animal sacrifices, to honor Illapa and ensure favorable weather conditions for their crops. The worship of Illapa was widespread across the Andes, reflecting the deity's significance in the cultural and religious practices of the region.