Abba (Ba) bar Zabdai (Hebrew: אבא בר זבדי) was a Palestinian amora who flourished in the 3rd century. He studied in Babylonia, attending the lectures of Rab and Rav Huna, and subsequently settled at Tiberias, where he occupied a respected position by the side of Rav Ammi and Assi. Mention is made of his custom of saying his prayers in a loud voice (Yer.