Hehet (or Hauhet) was a primordial goddess, one of eight Egyptian deities composing the ogdoad in the Hermopolitan Theological System who represented chaos.
Her consort was Heh. She is one of the four feminine deities who had serpent heads representing their affinity for the depths of the earth.
When paired with Heh, the couple epitomized the concept of infinity. Anthropomorphized as a baboon she is depicted as greeting the rising sun. A.G.H.
Sources:
Grimal, Pierre, Larousse World Mythology, Secaucus, New Jersey, Chartwell Books, 1965, p. 32
Jordan, Michael, Encyclopedia of Gods, New York, Facts On File, Inc. 1993, pp. 97-98