Helios (/ˈh.li.s/; Modern Greek: Ήλιος; Ancient Greek: Ἥλιος; Homeric Greek: Ἠέλιος), Latinized as Helius, is the god and personification of the Sun in ancient Greek religion and myth, often depicted in art with a radiant crown and driving a horse-drawn chariot through the sky. He was a guardian of oaths and also the god of sight.

Personification of the Sun
Helios on an antique fresco from Pompeii
Symbolsun, chariot, horses, aureole
DaySunday (hēméra Hēlíou)
Personal information
ParentsHyperion and Theia
SiblingsSelene and Eos
ConsortMany including: Clymene, Clytie, Perse, Rhodos, and Leucothea
ChildrenActis, Aega, Aegiale, Aeëtes, Aloeus, Astris, Augeas, Bisaltes, Candalus, Cercaphus, the Charites, Circe, the Corybantes, Electryone, the Heliades, the Horae, Ichnaea, Lampetia, Macareus, Ochimus, Pasiphaë, Perses, Phaethon, Phaethusa, Tenages and Triopas
Roman equivalentSol
Norse equivalentSól
Hinduism equivalentSurya[1]
Canaanite equivalentShapash
Mesopotamian equivalentUtu
Hungarian (magyar) equivalentNapkirály

Though Helios was a relatively minor deity in Classical Greece, his worship grew more prominent in late antiquity thanks to his identification with several major solar divinities of the Roman period, particularly Apollo and Sol. The Roman Emperor Julian made Helios the central divinity of his short-lived revival of traditional Roman religious practices in the 4th century AD.

Helios figures prominently in several works of Greek mythology, poetry, and literature, in which he is often described as the son of the Titans Hyperion and Theia and brother of the goddesses Selene (the Moon) and Eos (the Dawn).