The Austrian Federal Railways, now commonly known as ÖBB, is the national railway company of Austria, and the administrator of Liechtenstein's railways. The ÖBB group is owned entirely by the Republic of Austria, and is divided into several separate businesses that manage the infrastructure and operate passenger and freight services.

The Imperial-Royal State Railways abbr. kkStB) or Imperial-Royal Austrian State Railways was the state railway organisation in the Cisleithanian (Austrian) part of the Austro-Hungarian Monarchy.