The Katzbach Railway (German: Katzbachbahn) is a branch line in southwestern Germany from Bruchsal to Odenheim that opened in 1896, and was extended in 1900 to Hilsbach.

Since 1994 the line has been operated by the Albtal-Verkehrs-Gesellschaft (AVG), who electrified it in 1998 and integrated it into the network of the Karlsruhe Stadtbahn.

Together with the neighbouring Kraich Valley Railway from Bruchsal to Menzingen, with which it shares a common trackbed as far as Ubstadt Ort, it has formed a single operating unit since its inception.

The Katzbach Railway continues straight on to Ubstadt Uhlandstraße station and runs to Stettfeld next to the Kraichbach.

The current line follows two river valleys, while the topographical conditions of the closed section to Hilsbach was much more difficult, which is the reason it was built later.

At the eastern edge of Odenheim, the line was demolished over a length of about three hundred metres for the realignment of state highway 552.

It was renovated in 1988 by the City of Östringen at a cost of 155,000 Deutsche Marks and converted into a hiking and biking trail.

In the 1870s, Bruchsal campaigned unsuccessfully for a rail link with the towns on the Kraichbach: Ubstadt, Unteröwisheim, Oberöwisheim, Münzesheim and Gochsheim.

The northern line would run through Odenheim to Elsenz and the southern branch up the Kraichbach valley to Gochsheim.

The line was initially operated by the Westdeutsche Eisenbahn-Gesellschaft (West German Railway Company, WeEG).

The Kraich Valley and the Katzbach Railways were the two most profitable lines operated by BLEAG in the early years of the twentieth century.

After the district of Karlsruhe agreed to contribute the funding of various BLEAG routes, the lines were temporarily saved.

In the wake of the bankruptcy, both of the BLEAG lines in the Kraich Valley and the Katzbach were taken over by the German Railway Operating Company (Deutsche Eisenbahn-Betriebs-Gesellschaft, DEBG) on 1 January 1932.

The steam locomotives and passenger carriages on the line, which were up to fifty years old, were gradually replaced by diesel haulage from the mid-1950s.

On 1 October 1960, therefore passenger services were discontinued between Tiefenbach and Hilsbach and twelve days later, following a derailment, freight traffic was abandoned.

From October 1981 services on the Katzbach line were strengthened by the introduction of class NE 81 diesel multiple units, which had been built by Waggon Union.

In order to preserve both the Katzbach and the neighbouring Kraichtal lines from total closure, the Albtal-Verkehrs-Gesellschaft (Alb Valley Transport Company, AVG) took over both sections from the SWEG in 1994.

Trains running instead to Forbach via Baden-Baden or Achern change line number to S 32 in Ubstadt Ort.

In Stettfeld the old platform, the freight loading dock and goods shed were demolished along with the station building during the construction of a large residential complex.