Atlanersa (also Atlanarsa) was a Kushite ruler of the Napatan kingdom of Nubia, reigning for about a decade in the mid-7th century BC. He was the successor of Tantamani, the last ruler of the 25th Dynasty of Egypt, and possibly a son of Taharqa or less likely of Tantamani, while his mother was a queen whose name is only partially preserved. Atlanersa's reign immediately followed the collapse of Nubian control over Egypt, which witnessed the conquest by the Assyrians and then the beginning of the Late Period under Psamtik I. The same period also saw the progressive cultural integration of Egyptian beliefs by the Kushite civilization.