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A4 marker
A4
Vilnius – Varėna – Druskininkai
Route information
Length134.46 km (83.55 mi)
Major junctions
FromVilnius
ToGrodno
Belarus Belarus
P 42
Location
CountryLithuania
Major citiesVarėna, Druskininkai
Highway system
Distance sign near Merkinė

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 P 42. 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. It is the main road connecting Vilnius with the Dzūkija region.