The Itz Valley Railway (German: Itzgrundbahn) was a former, 8 kilometre long branch line in Bavaria, Germany, running from Creidlitz, in the borough of Coburg, to Rossach in the municipality of Großheirath.

The line initially belonged to the Prussian state railways and was managed until 1945 by the Erfurt Reichsbahn division.

Attempts to extend the route to Kaltenbrunn in the lower Itz valley as far as the Bavarian line from Breitengüßbach to Dietersdorf, which had been opened in 1913, were never realised although it was only 6.7 kilometres distant.

Later attempts foundered due to a lack of funding and, in the end, the fact that the Lichtenfels–Coburg line was electrified.

In the Deutsche Reichsbahn Gesellschaft's 1934 railway timetable the line was listed as 165e and four pairs of passenger trains were scheduled daily each with a journey time of about 30 minutes for the 13 kilometres between Coburg and Rossach.