The Lyulin motorway (Bulgarian: Автомагистрала „Люлин“, Avtomagistrala "Lyulin") is a motorway in Bulgaria, that provides link between the western arc of the Sofia ringroad and the Daskalovo interchange, at the town of Pernik, where it merges with Struma motorway (A3). The total length of the motorway is around 19 km (12 mi), which makes it the shortest motorway in Bulgaria.