Hismaic is a variety of the Ancient North Arabian script and the language most commonly expressed in it. The Hismaic script may have been used to write Safaitic dialects of Old Arabic, but the language of most inscriptions differs from Safaitic in a few important respects, meriting its classification as a separate dialect or language. Hismaic inscriptions are attested in the Ḥismā region of Northwest Arabia, dating to the centuries around and immediately following the start of the Common Era.