Nabû-apla-iddina, inscribed mdNábû-ápla-iddinana or mdNábû-apla-íddina,; reigned about 888 – 855 BC, was the sixth king of the dynasty of E of Babylon and he reigned for at least thirty-two years. During much of Nabû-apla-iddina's reign Babylon faced a significant rival in Assyria under the rule of Aššur-nāṣir-apli II. Nabû-apla-iddina was able to avoid both outright war and significant loss of territory. There was some low level conflict, including a case where he sent a party of troops led by his brother to aid rebels in Suhu (Suhi, Sukhu, Suru). Later in his reign Nabu-apla-iddina agreed to a treaty with Aššur-nāṣir-apli II’s successor Šulmānu-ašarēdu III. Internally Nabu-apla-iddina worked on the reconstruction of temples and something of a literary revival took place during his reign