Strèda Naziunela S181

x70px S181
Strèda Naziunela S181
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Route information
Length	42 km (26 mi)
North end	A1 in Innsbruck
South end	A5 near Staulìn
Location
Regions	Provinzia Adesc Provinzia Inn Provinzia Passeier Provinzia Ziller
Highway system
Strèdes Naziuneles of Tirol ← S18 → S1811

The S181 (officially Strèda Naziunela S181) is a national road in Tirol. It connects the cities of Innsbruck, San Laurënz, Ciavaleis, Ciadìn, and Staulìn. The road is partly a four-lane, Class B Autostrèda, meaning it has a central reservation and, for most stretches, has a hard shoulder.