| Image Alt: | Red-and-white train passing a mountain |
| Locale: | Austria |
| Linelength Km: | 171.1 |
| Tracks: | 1 |
| Electrification: | (Attnang-Puchheim–Stainach-Irdning) |
| Map State: | collapsed |
The Salzkammergut railway line (German: Salzkammergutbahn) is a standard gauge railway line in the Austrian states of Styria and Upper Austria. It runs from a junction with the Wels–Passau railway line near Schärding to a junction with the Enns Valley Railway in Stainach. Austrian Federal Railways (ÖBB) owns and operates the line. The name refers to the Salzkammergut region through which the line runs.
The northern end of the line is at, where it meets the Wels–Passau railway line. The portion of the line north of is single-tracked and unelectrified. The line runs north–south to Attnang-Puchheim. At, there is a junction with the . In Attnang-Puchheim, there is a junction with the Western Railway. South of Attnang-Puchheim, the line continues to be single-tracked but is electrified at . South of, the line passes along the west coast of the Traunsee, and then follows the Traun river some to the Hallstätter See. At the southern end of the Hallstätter See, near, the line turns east, eventually meeting the Enns Valley Railway at .
Operationally, the line is split at Attnang-Puchheim; no service operates the full length. North of Attnang-Puchheim, regional trains operate on an hourly schedule, with some exceptions, to .[1] South of Attnang-Puchheim, regional and Regional-Express combine for hourly service to or, with some trains continuing to . A single InterCity train, the Salzkammergut, operates daily between Wien Hauptbahnhof and Stainach-Irdning.[2]