The Hessian Ludwig Railway (German: Hessische Ludwigsbahn) or HLB with its network of 697 kilometres of railway was one of the largest privately owned railway companies in Germany.
The Hessian Ludwig Railway was a product of the failed – or, more accurately, non-existent – railway politics in the Grand Duchy of Hesse. Whilst the province of Starkenburg was given a central railway link, the Main-Neckar Railway very early on and the province of Upper Hesse at least had connexions to the railway network through the Main-Weser Railway at its periphery - the Grand Duchy had shares in both lines and they were operated as joint railways (Kondominalbahnen) – the third province, Rhenish Hesse (Rheinhessen), had no such facilities.
Because the state was not active in this area, there was an opportunity for private involvement in the shape of a (Aktiengesellschaft). The HQ of the Hessian Ludwig Railway was therefore not based in the capital of Darmstadt, but in the provincial capital for Rhenish Hesse, Mainz. The first impetus for the construction of a line in Rhenish Hesse came not however from local people, but from outside; in particular the Bavarian Palatinate was interested. For military strategic reasons the Prussian state disapproved of a route running west of the Rhine. The Grand Duchy of Baden saw the project competing with the Main-Neckar Railway in which Baden also had shares.
When, in 1844, the Bavarian government issued a licence for railway construction in the Bavarian Palatinate, a northern expansion of the railway into Rhenish Hesse appeared attractive. In addition, the pioneer of the German railways, Friedrich List, personally championed the building of a line from Mainz to Worms. The grand ducal government in Darmstadt however, initially remained opposed, especially as it had passed a law in 1842 for a state railway system. From 1845 onwards, however, there were proponents in the government for a private railway for the province of Rhenish Hesse.