The Mecklenburg Railway Company (German: Mecklenburgische Eisenbahngesellschaft) was founded in 1845 to build a railway line from Hagenow to Rostock and to Güstrow, now in the German state of Mecklenburg-Vorpommern.
It was nationalised in 1873 and combined with the Grand Duchy of Mecklenburg Friedrich-Franz Railway.
The planning of the Prussian Berlin–Hamburg line from 1841 inspired the Grand Duchy of Mecklenburg-Schwerin to develop projects for its own network.
On 10 March 1846 the Company received a concession to build a railway from Hagenow via Schwerin to Wismar as well as from Bad Kleinen via Bützow to Rostock and Güstrow.
On 1 May 1847, the section between Hagenow and Schwerin was put into operation.