The Bavarian Prealps (German: Bayerische Voralpen) are a mountain range within the Northern Limestone Alps along the Austria–Germany border.

The term is not defined politically, but alpine-geographically because, although the range is mostly located in Bavaria, southeast Germany, small areas of the Bavarian Prealps lie in the state of Tyrol (e.g. the Hinteres Sonnwendjoch south of the Rotwand), Austria.

Except in the Ester Mountains in the extreme west, the summits of the Bavarian Prealps are all below 2000 metres in height and only a few have prominent limestone cliffs.

The highest peak in the eastern part of the Bavarian Prealps – located on Austrian state territory in spite of the name – is the Hinteres Sonnwendjoch at 1,986 metres/6,516 ft above sea level.

The Via Alpina, a cross-border long-distance trail with five route sections, runs over the entire Alps, including the Bavarian Prealps.