Achsah (; Hebrew: עַכְסָה, also Acsah), was Caleb ben Yefune's only daughter. The meaning of her name is uncertain.
She was offered in marriage to the man who would lead an attack on the city of Debir, also called Kirjath-sepher/Kirjath-sannah. This was done by Othniel, Caleb's brother's son, who accordingly obtained her as his wife.
Achsah later requested, and was given, upper and lower springs of water (presumably in the Negev) from her father.
Various Septuagint manuscripts, in various passages, give her name as Ascha, Achsa, Aza, and Oxa.
This article incorporates text from a publication now in the public domain: Easton, Matthew George (1897). . Easton's Bible Dictionary (New and revised ed.). T. Nelson and Sons.