Heiligenberg is a municipality and a village in the Bodensee district in Baden-Württemberg, about seven kilometres north of Salem, in Germany.

The geographic features and climate of the area make Heiligenberg a nationally recognized health resort.

Parts of the town area show traces of settlement from the Stone Age.

Christianity arrived at the village around AD 600 through the Irish disciple Saint Gall.

It is unclear whether the name Heiligenberg comes from this period, or in pre-Christian times as a local place of worship.