Lech am Arlberg is a mountain village and an exclusive ski resort in the Bludenz district in the westernmost Austrian state of Vorarlberg, on the banks of the river Lech.

In terms of both geography and history, Lech belongs to the Tannberg district. In touristic terms, however, it is part of the Arlberg region. Lech is administered together with the neighbouring villages of Zürs, Zug, Oberlech and Stubenbach. Catering to wealthier clientele, particularly to the international jet set and foreign royalty, the municipality is an internationally known winter sports resort on the mountain range Arlberg. The Dutch royal family and Russian oligarchs regularly ski there. Lech am Arlberg is one of the 12 members of the elite group "Best of the Alps".

Lech was settled and founded in the first half of the 14th century by Walser migrants from the canton of Wallis in Switzerland.

Until the nineteenth century, it was known as "Tannberg". Subsequently, the full name "Tannberg am Lech" gave rise to the present name "Lech".

The church of St Nicholas, which is thought to have been built around 1390, was the parish church of the Tannberg administrative district, and there was also a Tannberg district court in Lech until the dissolution of the Tannberg district in 1806.

In recent decades, the once small town has developed into a flourishing community, thanks to the influence of winter tourism and, increasingly, by summer tourism.