Ahaḥ (Ahah) is one of the Aṣṭavasu (Ashtavasu; the eight Vasus), born in the womb of Ratā (Rata), and sired by Dharma. Ahaḥ had four sons — Jyoti, Śama (Sama), Śānta(Santa) and Muni. This Vasu named Ahaḥ is found to be present during the abhiṣeka (abhisheka; corronation) of Skanda-Kārtikeya (Kartikeya).