Bohemian Switzerland (; ), also known as Czech Switzerland, is a picturesque region in the north-western Czech Republic. It lies on the Czech side of the Elbe Sandstone Mountains north of Decín on both sides of the Elbe River. It extends eastward into the Lusatian Mountains and westward into the Ore Mountains. Its highest elevation is the mountain Decínský Snežník at 726m above sea level. It has been a protected area (as ChKO Labske Piskovce) since 1972.