The International Rhine Regulation Railway (German: Internationale Rheinregulierungsbahn) was an industrial railway situated on both banks of the Alpine Rhine canal to the south of its outfall into Lake Constance.

As this stretch of the River Rhine forms the border between Austria and Switzerland, the railway is located in both countries (further north the border follows westwards along the Alter Rhein).

Some of the tracks, mainly on the left bank of the river, have been subsequently removed, including the bridge at Kriessern in 2020.

Since 2008, operations on the line between Lustenau (where a small platform was built) and the river outflow are done by the Verein Rheinschauen (Rheinschauen association), which also conducts maintenance work on the line.

[2] Diesel-electric locomotives push-pulling passenger coaches operate on weekends during the warmer seasons.