Nehardea Academy (Hebrew: ישיבת נהרדעא; Previously also named: Beth Hamidrash/The College /The House of Study [ Aramic: בי מדרשא ], or The Boundary [ Aramic: תחומא]) was one of the major rabbinical academies in Babylon, active intermittently from the early Amoraim period and until the end of the Geonim period. It was established by the Amora Samuel of Nehardea, one of the great sages of Babylon.
Samuel of Nehardea founded the academy, which in time attracted thousands of students. Along with Sura Academy founded by Abba Arika ("Rav"), it opened a new era in which Babylon became the center of Judaism. After Abba Arika's death, many students from Sura moved to Nehardea.
Despite the fact that Rav Kahana III's Pum-Nahara Academy was subordinated to Sura Academy, from the time Arika died the heads of the Nehardea Academy came to visit Rav Kahana in Pum-Nahara with the intention of strengthening the ties between the two academies. This reinforcement of ties is attested by the fact that Kahana III gave his funeral oration to Rav Zevid of Nehardea at Pum-Nahara, a funeral oration, most probably in conjunction with the fact that Rav Kahana III was a disciple of Rav Zevid of Nehardea. We find, for example, R. Nahman of Nehardea coming to visit Rav Kahana III in Pum-Nahara on the eve of Yom Kippur. It is possible he came in order to participate with them in the prayers of the holy day.
The academy had a special custom to show respect for the sages of The Land of Israel: When a guest came from the Land of Israel, he taught in the presence of the dean and all students. After the class ended, a long and lively debate was conducted in which the students would inundate the guest with academic questions.
Among the scholars who attended the Nehardea Academy, there were known Amoraim sages cited in the Talmud, such as R. Shimi of Nehardea, R. Dimi of Nehardea, Rav Zevid of Nehardea, and Amemar. In many Talmud citations, there is a mention of Nehardea's academy methods, however Amemar states that despite the fact that he is a Nehardean, he thinks otherwise. It is unclear whether he meant that Nehardea's academy thinks otherwise and not as what is known to be the methods, or was he an independent in his thinking.
After the death of Samuel, the academy split. The academy itself, headed by Rav Huna, a disciple of Samuel, moved to Sura, while another student of Abba Arika and Shmuel, Judah ben Ezekiel, founded the Pumbedita Academy. However, Judah ben Ezekiel and his followers regarded Rav Huna as Gedol haDor, until upon the his death in 297 (Hebrew calendar: ד"א נ"ח or ד'נ"ח ).
In some cases, where there is disagreement among scholars, we find the Nehardea academy practicing Raba bar Rav Huna view, and it may have to do with the fact that his son was the head of the academy and one of its leaders.
- Anbar (town) (Firuz Shapur)
- Talmudic Academies in Babylonia
- Pumbedita (City)
- Sura (city)
- Talmudic Academies in the Land of Israel
- חיי היהודים בזמן התלמוד - יודילוביץ, מרדכי דוב בן שלמה
- B. Talmud, Tractate Shabbat, 95a 
- B. Talmud, Tractate Bekoroth, 31b 
- B. Talmud, Tractate Bava Kamma, 50b 
- B. Talmud, Tractate Bava Bathra, 51a 
- B. Talmud, Tractate Mo'ed Katan, 27a
- B. Talmud, Tractate Sanhedrin, 69b
- B. Talmud, Tractate Hullin, 95b
- Cited in Yoma
- B. Talmud, Tractate Bava Batra, 31a, and more
- שיחות לנוער
- Yud Shin Tzuri, Rav Ashi, p. 19 (in Hebrew)
- B. Talmud, Tractate Hullin, 50b