The Dugo Selo–Novska railway (Croatian: Pruga Dugo Selo–Novska), officially designated as the M103 railway, is a 83.405-kilometre (51.825 mi) railway line in Croatia that connects Dugo Selo, situated east of national capital Zagreb, to Novska and the M105 railway extending east towards Belgrade. Its route follows the Sava River valley. It is an integral part of railway Pan-European Corridor X running from Salzburg and Ljubljana towards Skopje and Thessaloniki.
