Psammetichus II (also spelled Psammeticus, Psammetich, and Psamtik II) was a king of the Twenty-sixth dynasty of Egypt (595 - 589 BC).

Pharaoh Psammetich II marched into Palestine and Phoenicia about 592 BC in response to moves made by Babylon, and attempted to generate anti-Babylonian sentiments among the leaders of kingdom of Judah, Philistia and Phoenicia.

Wahibre (Apries) succeeded him.

According to Herodotus (Histories 2.9), Psammetichus had two children raised in isolation in order to find the original language. He thought their mumblings sounded like Phrygian; since language is a learned behavior, they never could have spoken a language in reality. Frederick II of Prussia intended to repeat the experiment, but in his case, the children died before they uttered articulate speech.