Bundesautobahn 27 (translates from German as Federal Motorway 27, short form Autobahn 27, abbreviated as BAB 27 or A 27) branches off the A 7 at Autobahndreieck Walsrode to the northwest, crossing A 1 at the Bremer Kreuz and continuing eastwards of Bremen, toward Cuxhaven. It also serves as European route E234, a B Class road on the International E-road network.

A 27
Bundesautobahn 27
Route information
Length	158 km (98 mi)
Major junctions
From	Walsrode
To	Cuxhaven
Location
Country	Germany
States	Lower Saxony, Bremen
Highway system
Roads in Germany Autobahns List Federal List State E-roads
← A 26 → A 28

Due to the large ports (especially in Bremerhaven) alongside the Autobahn, there is heavy truck traffic.

Its northernmost part, between Bremen and Cuxhaven, largely replaced the Bundesstraße 6, although some maps still show the B 6 within the city limits of Bremerhaven.