Fernão Ferro is a Portuguese parish, located in the city of Seixal. It had a 2001 population of 10,752 inhabitants and a total area of 25.26 km², its density was 425.7/km².The parish was created in June 1, 1993 from separating from the parishes of Aldeia de Paio Pires, Amora and Arrentela.Its coat of arms contains a blue shield.