"Molli" redirects here. Not to be confused with Mollis.
This article is about the narrow gauge line from Bad Doberan to Kühlungsborn. For standard gauge line from Rövershagen to Graal-Müritz, see Mecklenburgische Bäderbahn.
The Molli (German: Mecklenburgische Bäderbahn "Molli"; short: MBB; also: Molli Bahn or Mollibahn) is a narrow-gauge steam-powered railway in Mecklenburg, Germany, running on 900 mm (2 ft 11+7⁄16 in) gauge track. It operates between Bad Doberan, Heiligendamm and Kühlungsborn West over a total distance of 15.4 km with a running time of 40 minutes. Within Bad Doberan the line runs through the street, and later along a linden tree-lined avenue.