Altkalen is a municipality in the Rostock district, in Mecklenburg-Vorpommern, Germany.
Kalen was first mentioned in a document from 1174. The name "Kalen" is of Slavic origin and means "marsh" or "morass". After 1236, Kalen was expanded as a city with a strong fortification.
This Rostock district location article is a stub. You can help Wikipedia by expanding it.