D6 motorway (Czech Republic)

D6 Motorway
Dálnice D6
Route information
Part of E48 E49
Length111.5 km (69.3 mi)
Planned: 159.7 km (99.2 mi)
Major junctions
From D0 in Prague
To B303 border with Germany
Location
CountryCzech Republic
RegionsPrague, Central Bohemian, Ústí nad Labem, Karlovy Vary
Major citiesPrague, Karlovy Vary, Cheb
Highway system
D 5 D 7

D6 motorway (Czech: Dálnice D6), formerly Expressway R6 (Czech: Rychlostní silnice R6) is a motorway in the Czech Republic. When completed, it will route from Prague through Karlovy Vary and Cheb, to the border with Germany. D6's first segment was opened in 1980s.

The D6 motorway is part of the European road E48, and a short part of it forms the European road E49. As of January 2025, 111.5 km (69.3 mi) of the motorway is in operation.