Emperor Franz Joseph Railway

It operated railway lines from the Austrian capital Vienna to Prague and Eger (Cheb) in Bohemia.

The stock company (Aktiengesellschaft) was founded by the Bohemian noble Prince Johann Adolf II of Schwarzenberg (1799–1888), a brother of former State Chancellor Prince Felix of Schwarzenberg, who had a first 455 km (283 mi) long railway line built from Vienna to Eger, starting after the Austro-Prussian War of 1866.

It was extended to Eggenburg in Lower Austria on 1 November 1869 and train service to Vienna began on 23 June 1870.

When the northwestern branch was extended from Pilsen to Eger on 28 January 1872, the KJFB network comprised 715 km (444 mi).

Prague's present main station originally belonged to the Franz Josef Railway company.