| Country: | LTU |
| Type: | A |
| Route: | 4 |
| Alternate Name: | Vilnius – Varėna – Druskininkai |
| Map: | LT-A4.svg |
| Length Km: | 134.46 |
| Terminus A: | Vilnius |
| Terminus B: | Grodno Belarus |
| Cities: | Varėna, Druskininkai |
The A4 highway is a highway in Lithuania (Magistralinis kelias). It runs from Vilnius to the Belarus border, near Druskininkai. From there the road continues to Grodno as . The length of the road is 134.46 km.
Most of the road has one lane per each direction and default 90 km/h speed limit.[1] It is the main road connecting Vilnius with the Dzūkija region.