Tux is a municipality in the Schwaz district in the Austrian state of Tyrol.

The parish of Tux covers the higher and largest part of the Tuxertal, a side valley of the Zillertal that branches off at Mayrhofen. The territory of the parish extends to the glaciated peak of Olperer (3,476 m) and the 2,338 m high saddle of the Tuxer Joch, a crossing between the Zillertal and Wipptal valleys that was heavily used even in the protohistoric period. Other prominent peaks within the municipality are the 3,288 m high Gefrorene Wand Spitze and the 3,231 m high Hoher Riffler. The highest farmsteads lie at a height of 1,630 m.

On 25 January 2005 the state government renamed Lanersbach to Tux-Lanersbach and Vorderlanersbach to Tux-Vorderlanersbach because, although the municipality as a whole was called Tux, there was no actual village with the name.

Tux-Vorderlanersbach (1,300 m above sea level (AA)) is the first village along the road from Finkenberg. On the mountainside above lie the hamlets of Schöneben and Gemais. The farming settlement of Gemais at 1,450 m was placed under conservation protection as it has a historical coherence and unity of architectural style that date back to the 17th century. It developed from a former Schwaighof - a type of livestock farm typical of the Alpine region. The 2,292 m high hamlet of Geiseljoch lies on the way into the Inn valley that was once a busy trading route to the markets in Hall in Tirol and Innsbruck. From Vorderlanersbach there is a single-cable gondola lift to the Rastkogel skiing area, which in turn is linked to the nearby skiing areas of Penken and Eggalm.

Tux-Lanersbach (1,300 m above sea level (AA)) lies about two kilometres beyond Vorderlanersbach and forms the cultural and business heart of the Tuxertal. Tux-Lanersbach is both the seat of the municipality of Tux as well as a church parish that has existed since 1891. The parish church in Tux-Lanersbach was built in 1686 in place of an older Gothic church and was converted to the baroque style in 1750. In the south of the village at the Höllenstein Hut (about 1,800 m), a small farm museum has been established. A cable lift leads to the Eggalm ski and hiking area.

At the Tuxer Ferner glacier is an all-season skiing area with a large number of lifts. The place is the base for many walks and high Alpine tours. The Hintertux Glacier Ski Region (Skigebiet Hintertuxer Gletscher) belongs to the Zillertal 3000 ski region and is a popular with skiers in summer as well as winter.