Ra is the sun god of ancient Egypt. He is one of the oldest deities in the Egyptian pantheon and was later merged with others such as Horus, becoming Ra-Horakhty (the morning sun), Amun (as noonday sun), and Atum (the evening sun) associated with primal life-giving energy.

Ra is the Egyptian word for 'sun'. As a solar deity, Ra embodied the power of the sun but was also thought to be the sun itself, envisioned as the great god riding in his barge across the heavens throughout the day and descending into the underworld at sunset. As he made his way through the darkness beneath the earth, he was attacked nightly by the giant serpent Apophis (also known as Apep) who tried to prevent the sun from rising and so destroy all life on earth.