|Extinct||marginalized by Classical Arabic from the 7th century|
|Writing system||South Arabian alphabet|
Hasaitic is an Old North Arabian dialect attested in inscriptions in the Eastern Province of Saudi Arabia at Thaj, Hinna, Qatif, Ras Tanura, Abqaiq in the al-Hasa region, Ayn Jawan, Mileiha and at Uruk. They are written in the South Arabian script and date to the 3rd to 2nd centuries BC.
- M. C. A. Macdonald, Reflections on the linguistic map of pre-Islamic Arabia, Arabian archaeology and epigraphy 11 (2000), 28-79.
- William Facey, The Story of the Eastern Province of Saudi Arabia, 1994, ISBN 1-900988-18-6