Rav Kahana (II) (Hebrew: רב כהנא (השני), read as Rav Kahana (Ha-sheni), lit. "Rabbi Kahana (II)"; Recorded on the Talmud merely as R. Kahana) was a Jewish Amora sage, active in Babylon and in the Land of Israel, and of the second generation of the Amora sages era. He was a disciple of R. Abba Arika ("Rav").
According to the Geonim tradition, Rav Kahana was the stepson of Abba Arika from his second wife. Despite his name, that usually bears the title of "Kohen" (priest), he was not a "Kohen".