R. Ahai (Hebrew: רב אחאי, read as Rav Achai; sometimes recorded as R. Aha, Hebrew: רב אחא, read as Rav Acha) was a Jewish Savora sage of the first generation of the Savora era. R. Ahai is the most recorded Savora sage in the BabylonianTalmud. His though questions in the Talmud are excerpted as a foreword: "R. Ahai retorted:...". The sages of the Land of Israel said of him:
"Give heed to the opinion of R. Ahai for he enlightens the eyes of the exile"