Porto Rafti (Greek: Πόρτο Ράφτη), official name: Limin Markopoulou (Greek: Λιμήν Μαρκοπούλου), is a seaside resort town in East Attica, Greece.
Porto Rafti is nowadays known as a famous seaside resort, as there is the municipal famous beach (Avlaki). Porto Rafti, along with the areas of Keratea and Markopoulo Koropi, has experienced large housing development after the construction carried out in the region in 2004. The problem, which both the region and the whole Mesogeia face, is the creation of an integrated sewerage and watering system. At the borders of Municipality of Markopoulo, to which Porto Rafti belongs, there is the Historic site of Vravrona.