Utu is the Sumerian and Akkadian word for the sun god, representing light, justice, and truth in ancient Mesopotamian religion. Utu was considered a key deity within the pantheon, believed to bring warmth and illumination, which were essential for agriculture and daily life. As a solar deity, Utu also played a significant role in upholding moral order and ensuring justice in human affairs, reflecting the ancient people's deep connection between divine authority and natural phenomena.