Tarvisio–Udine railway is an Italian railway line that connects Udine and Tarvisio. It is also called the ferrovia Pontebbana in Italian after the town of Pontebba, which was located near the former border between Italy and Austria-Hungary during the first thirty years of its operation.

The Rudolf Railway refers to a railway in Austria connecting Amstetten and the Italian border near Tarvisio, along with a branch from Kastenreith to St. Valentine. Its name is derived from the k.k. priv. Kronprinz Rudolf-Bahn Gesellschaft. The main line, which was opened from 1868 to 1873, ran on the St. Valentin–Kastenreith–Kleinreifling–Selzthal–Schoberpass–St. Michael–Neumarkt saddle–St. Veit an der Glan–Feldkirchen in Kärnten–Villach–Tarvisio Centrale route. The section of the line within the current borders of Italy now runs over the new Tarvisio–Udine railway through Tarvisio Boscoverde. It replaced a very windy route to Udine that originally formed part of the Rudolf Railway.