The Yellow Emperor, also known as the Yellow Thearch or by his Chinese name Huangdi, is a mythical Chinese sovereign and culture hero included among the legendary Three Sovereigns and Five Emperors, and an individual deity (shen) or part of the Five Regions Highest Deities in Chinese folk religion. Calculated by Jesuit missionaries, who based their work on various Chinese chronicles, and later accepted by the twentieth-century promoters of a universal calendar starting with the Yellow Emperor, Huangdi's traditional reign dates are 2697–2597 or 2698–2598 BC.

Throughout Chinese history, "Emperor" was the superlative title held by the monarchs who ruled various imperial dynasties. In traditional Chinese political theory, the emperor was the "Son of Heaven", an autocrat with the divine mandate right to rule all under Heaven. Emperors were worshiped posthumously under an imperial cult. The lineage of emperors descended from a paternal family line constituted a dynasty, and succession in most cases theoretically followed agnatic primogeniture.