Konstantinoupoleos Avenue (Greek: Λεωφόρος Κωνσταντινουπόλεως) is named after Constantinople, the capital of the Byzantine Empire, and is an avenue in the center-western suburbs of Athens. It links the western part of Agios Ioannis Rentis to the northern part of Sepolia, which links with a road to Kamatero. The western part has several lanes and the eastern part is a city street, while the rest of the route is a major road that is used as access to Kallirois Street which links with Vouliagmenis Avenue as well as Vasileos Konstantinou Avenue, thus linking the western suburbs of Athens to the southern ones, bypassing the downtown section.