Ahaitz
Ahaitz or Ahaize is a Basque place name referring to flat areas in mountain, favorable to human settlement. It may refer to:

Ahaize, a hamlet of the commune of Ossès. Ahaxe, a commune of the Pyrénées-Atlantiques. It is at the origin of place names as:

Ahetze, a commune of the Pyrénées-Atlantiques and a former mande of Lower Navarre. Ahaizparren: Hasparren, Azparren, Asparren
Aezkoa (Ahezcoa in 1137), a valley of Navarre.