Podčetrtek (pronounced [ˈpoːtʃɛtəɾtək] or [pɔtʃɛˈtəɾtək]; German: Windisch Landsberg[2]) is a settlement in eastern Slovenia by the river Sotla.

The name appears on a 1763–87 map in both German and Slovene as Landsberg Windisch Pod Tschetertkom.

[2] Most of the current structure of the castle dates to the early 17th century, when a two-story building with a central courtyard and two southern towers was built.

After 1945 it was looted and fell into a state of disrepair, although the imposing building on a hill above the settlement remained a prominent landmark.

The parish church in the settlement is dedicated to Saint Lawrence and belongs to the Roman Catholic Diocese of Celje.