The Tux Alps or Tux Prealps (Tuxer Voralpen) are a sub-group of the Austrian Central Alps, which in turn form part of the Eastern Alps within Central Europe. They are located entirely within the Austrian federal state of Tyrol. The Tux Alps are one of three mountain ranges that form an Alpine backdrop to the city of Innsbruck. Their highest peak is the Lizumer Reckner, 2,886 m (AA), which rises between the glen of Wattentaler Lizum and the valley of the Navisbach. Their name is derived from the village of Tux which is tucked away in a side valley of the Zillertal.
The Alpine Club classification of the Eastern Alps (AVE) calls this range the Tux Alps. The name Tux Prealps was declared in the 1984 edition of the AVE as outdated and not longer applicable. The reality is that the mountain range can hardly be described as "prealps" in view of their sheer extent and height. The description only makes any sense when the range is seen in the context of the Zillertal Alps to the south, which are considerably higher than the Tux Alps and permanently covered in glaciers.