Idi b. Abin Naggara (or Idi bar Abin, or Idi ben Abin, or Rav Idi b. Avin (I)) was a Jewish Babylonian Amora sage of the fourth generation of the Amoraic era. He was the son of R. Abin Naggara, who made his living as a carpenter (Naggara = "the carpenter"), and used to observe all the commandments related to lighting a candle. In that conjunction, it is said that Rav Huna was accustomed frequently to pass the door of R. Abin the carpenter and, when seeing the observamce of Shabbat candles, he remarked that "Two great men will issue hence", since it is stated that "He who habitually practises [the lighting of] the lamp will possess scholarly sons", and indeed he had Idi and Hiyya b. Abin Naggara.
R. Idi b. Abin acquired his Torah knowledge from R. Amram and Rav Chisda. He also delivered papers in the name of R. Isaac b. Ashian, most of them in the Aggadah, and most likely he was also his pupil. He married a woman of Kohen descent and thus ate the foreleg, the jaws, and the maw. His sons R. Shesheth and R. Shisha were ordained to teaching. His pupils were Rav Papa and R. Huna b. Joshua who were hosted at one of his sons' houses.