Ḥeḥ (ḥḥ, also Huh, Hah, Hauh, Huah, and Hehu[citation needed]) was the personification of infinity or eternity in the Ogdoad in ancient Egyptian religion.

With his female counterpart Ḥauḥet (or Ḥeḥut), Ḥeḥ represented one of the four god-goddess pairs comprising the Ogdoad, a pantheon of eight primeval deities whose worship was centred at Hermopolis Magna.

The mythology of the Ogdoad describes its eight members, Heh and Hauhet, Nu and Naunet, Amun and Amaunet, and Kuk and Kauket, coming together in the cataclysmic event that gives rise to the sun (and its deific personification, Atum).

[10] The personified, somewhat abstract god of eternity Ḥeḥ possessed no known cult centre or sanctuary; rather, his veneration revolved around symbolism and personal belief.

The god's image and its iconographic elements reflected the wish for millions of years of life or rule; as such, the figure of Ḥeḥ finds frequent representation in amulets, prestige items and royal iconography from the late Old Kingdom period onwards.