Which god is the moon personified?

The god who personifies the Moon in Norse mythology is Máni.

Máni is the personified Moon in both the Poetic Edda and the Prose Edda. His name simply means “Moon” in Old Norse. The myths describe him as the son of Mundilfari and the brother of Sól, the personified Sun. Their placement in the heavens reflects the Norse tendency to treat major cosmic bodies as divine beings with personalities and relationships.

According to the Prose Edda, Máni travels across the sky and is followed by the children Hjúki and Bil. A later folkloric tradition connects these figures with the familiar image of children carried or seen near the Moon, although the surviving medieval sources do not tell one single fully developed version of that story.

Máni is easily confused with Sól because both are celestial figures, but Sól is the Sun and Máni is the Moon. He is also distinct from gods such as Ullr and Baldr, who have no primary role as the Moon’s personification. Monday preserves a related lunar connection: its English name comes from “Moon’s day.”