The Twenty-fifth Dynasty of Egypt, known as the Nubian Dynasty or the Kushite Empire, was the last dynasty of the Third Intermediate Period of Ancient Egypt.

The 25th dynasty was a line of rulers originating in the Nubian Kingdom of Kush and most saw Napata as their spiritual homeland. They reigned in part or all of Ancient Egypt from 760 BC to 656 BC. The dynasty began with Kashta's invasion of Upper Egypt and culminated in several years of war with the Assyrians which was to result in the destruction of the Kushite Empire. The 25th's reunification of Lower Egypt, Upper Egypt, and also Kush (Nubia) created the largest Egyptian empire since the New Kingdom. They ushered in an age of renaissance by reaffirming Ancient Egyptian religious traditions, temples, and artistic forms, while introducing some unique aspects of Kushite culture. It was during the 25th dynasty that the Nile valley saw the first widespread construction of pyramids (many in modern Sudan) since the Middle Kingdom. After Assyrian king Esarhaddon invaded Egypt and defeated the Nubians, they were succeeded by the Twenty-sixth dynasty of Egypt, the last native dynasty to rule Egypt before the Persian conquest.