D20 is a state road in Međimurje and Podravina regions of Croatia connecting Koprivnica to the D3 state road near Čakovec, and the road also serves as a connecting road to the A4 motorway as it forms a junction with the A4 Čakovec interchange. The road is 50.4 km (31.3 mi) long. The road, as well as all other state roads in Croatia, is managed and maintained by Hrvatske ceste, state owned company.