The Port of Haydarpaşa, also known as the Port of Haidar Pasha or the Port of Istanbul, is a general cargo seaport, ro-ro and container terminal, situated in Haydarpaşa, Istanbul, Turkey at the southern entrance to the Bosphorus, near Haydarpaşa Station. It is operated by the Turkish State Railways (TCDD) and serves a hinterland which includes the country's most industrialised areas.