Rafz is a railway station in the Swiss canton of Zürich and municipality of Rafz. The station is located on the Eglisau to Neuhausen line of the Swiss Federal Railway (SBB) that crosses the international border twice on its route between the Swiss cantons of Zürich and Schaffhausen. The station is operated by the SBB and is served by Zurich S-Bahn line S9 that provides a half-hourly service between Zürich and Rafz, with alternate trains continuing to Schaffhausen. Before the timetable revision in late 2015, the station was served by S-Bahn line S5 from Zurich, and an intermediate stop on the S22 between Bülach and Schaffhausen, which was curtailed from Bülach to Jestetten, in turn it no longer fell under the purview of the ZVV.

The canton of Schaffhausen, also canton of Schaffhouse, is the northernmost canton of Switzerland. The principal city and capital of the canton is Schaffhausen. The canton's territory is divided into three non-contiguous segments, where German territory reaches the Rhine. The large central part, which includes the capital, in turn separates the German exclave of Büsingen am Hochrhein from the rest of Germany.