Seefelder Straße (B 177) is a 21.2 km long former federal road or Bundesstraße - now classified as a "priority road" or Straße mit Vorrang - in the Alps in the Austrian federal state of Tyrol. It links the Inn valley with Scharnitz and the Scharnitz Pass on the border with Germany, running past the Zirler Berg, over the Seefeld Saddle and past Seefeld. It is part of the E533 European route.

The Scharnitz Pass is a narrow section of the upper Isar valley in the Northern Limestone Alps. It lies at a height of about 955 m on the Austro-German border between the states of Bavaria and Tyrol. Its name derives from the village of Scharnitz immediately to the south.