| Country: | HRV |
| Type: | D |
| Route: | 403 |
| Length Km: | 2.5 |
| Length Round: | 1 |
| Terminus A: | A7 in Škurinje interchange |
| Junction: | D8 in Rijeka |
| Terminus B: | Port of Rijeka - West terminal |
| Counties: | Primorje-Gorski Kotar |
| Cities: | Rijeka |
D403 is a state road connecting A7 motorway Škurinje interchange[1] to the centre of the city of Rijeka, and to the Port of Rijeka West terminal.[2] The road is 2.5km (01.6miles) long.[3]
The D403 state road is scheduled for a reconstruction in order to provide a more efficient connection to the Port of Rijeka, but those plans have been postponed.[4] Currently, D-403 comprises many urban at-grade intersections within the city of Rijeka.
The road, as well as all other state roads in Croatia, is managed and maintained by Hrvatske ceste, state owned company.[5]