Porto Rafti (Greek: Πόρτο Ράφτη), officially named Limin Markopoulou (Λιμήν Μαρκοπούλου), is a seaside resort town located in East Attica, Greece.

The names of the ancient villages around the bay of Porto Rafti were Steiria, Prasiai, and Koroni.

They belonged to the paraktia (seaside) Pandionis phyle, according to the division of the Ancient Athenian Democracy by Clisthenes in the early 5th century BCE.

The port of Porto Rafti is no longer in use as a commercial harbor due to environmental concerns, but it has an organized marina for smaller recreational vessels with seaside restaurants and cafes.

This port was the scene of the allied troops' evacuation after the German invasion in Greece at the end of April 1941.