Who was the king who changed his name that worship Aton?

The king who changed his name to worship Aton was Pharaoh Akhenaten, originally named Amenhotep IV. He ruled during the 18th Dynasty of ancient Egypt and is known for promoting monotheism centered around the worship of the sun disk, Aton. Akhenaten's religious reforms and shift away from traditional polytheism marked a significant departure in Egyptian history. His reign is often considered a unique period in ancient Egyptian culture.