The god introduced and venerated by Akhenaton (Amenhotep IV).  Aton, or Aten, was a sun-god often symbolized by the disk of the sun and its rays.  The god was eternal, born anew each day.  The radical shift by Akhenaton circumvented the power of the priests, making him controversial, and shrouding his reign in mystery that remains to the present day.

After Akhenaton's death, Aten remained in the Egyptian Pantheon, and became associated with the established sun-god, Ra (Re).