In Egyptian mythology, Nehebkau ("he who harnesses the souls") was the snake god who guarded the entrance to Duat, the underworld. He also protected Re, the sun god, in his nightly forays through the underworld, as well as the pharaohs after they died. He also protected humans against bites from poisonous animals, especially snakes and scorpions.

In varying versions, he was a son of Serket, or Seb and Renenutet.

Alternative: Nehebu-Kau, Neheb-Ka