Kohen Tzedek ben Abimai HaKohen (Hebrew: רב כהן צדק בן איבומאי הכהן; c. 816 – 848) was the Gaon of Sura from 832–843.
Unlike many of his contemporaries, Kohen Tzedek spoke primarily in Hebrew as opposed to Aramaic.
Kohen Tzedek reveals a respectful attitude toward local custom even when it diverges from the practice of the Babylonian academies.
Kohen Tzedek states that when reading the Shema, one should add "אהבה רבה" (lit.
Kohen Tzedek died in 848 in Chamchamal and was succeeded by Sar Shalom ben Boaz.