Akhetaa (also written Achtiaa and Aa-Akhti) was an ancient Egyptian high official during the mid to late 3rd Dynasty (Old Kingdom period).

He is mostly known for his tomb inscriptions, which refer to various seldom used titles as well as to the shadowy king Nebka, in whose cult Akhetaa served.

The first one is disputed, because scholars do not know if the designation "twin basin" has to be taken verbatim or if it points to sacred lakes representing Lower and Upper Egypt.

The other title, "Promoter of Kenmut", points to a priestly role as the bearer of the king's sacred panther fur.

In later times, from the 5th Dynasty onward, a deity named Kenmut is known and can be found depicted in the solar sanctuary of pharaoh Pepi I.