Wahibre Psamtik I (Ancient Egyptian: Wꜣḥ-jb-Rꜥ Psmṯk) was the first pharaoh of the Twenty-sixth Dynasty of Egypt, the Saite period, ruling from the city of Sais in the Nile delta between 664 and 610 BC. He was installed by Ashurbanipal of the Neo-Assyrian Empire, against the Kushite rulers of the Twenty-fifth Dynasty, but later gained more autonomy as the Assyrian Empire declined.