The Harregi cave, also written Haregi, Harégi or Haréguy, is a Paleolithic cave located in the commune of Aussurucq in the Pyrénées-Atlantiques department. The cave, although small, contained an important archaeological deposit, excavations have revealed levels of the Mousterian, Gravettian, Solutrean, Magdalenian, Neolithic, and Bronze Age.

The cave is located in the town of Aussurucq in Soule des Arbailles. The cave is part of a set of several caves spread over the Arbailles massif.