| Bridge Name: | Schmittentobel Viaduct |
| Native Name: | Schmittentobel-Viadukt |
| Native Name Lang: | de |
| Official Name: | Schmittentobel-Viadukt |
| Carries: | Rhaetian Railway |
| Locale: | Schmitten, Switzerland |
| Owner: | Rhaetian Railway |
| Maint: | Rhaetian Railway |
| Design: | Arch bridge, Viaduct |
| Material: | Stone |
| Length: | 137NaN |
| Height: | 35NaN |
| Spans: | 7, each 15NaN |
| Open: | October 1902 |
| Coordinates: | 46.6808°N 9.6744°W |
The Schmittentobel Viaduct (German: Schmittentobel-Viadukt) is a single track limestone railway viaduct. It is situated near Schmitten, in the Canton of Graubünden, Switzerland.
The viaduct was opened in 1903 by the Rhaetian Railway, which still owns and uses it today.
An important element of the World Heritage-listed Albula Railway, the viaduct is high, long, and has seven spans, each in length.
The Schmittentobel Viaduct forms part of the Albula Railway section between Tiefencastel and Filisur.
Within sight of the Schmittentobel Viaduct, a little further along the line towards Filisur, is the much better known Landwasser Viaduct, which is one of the signature structures of the Albula Railway, and indeed the whole Rhaetian Railway.
The Schmittentobel Viaduct is high, long, and has no main span. Each of its seven equal spans is in length.