Burg Liebenstein, Medieval castle in Bad Liebenstein, Germany.

Burg Liebenstein is a stone fortress perched on a hilltop above Bad Liebenstein overlooking the Thuringian Forest. The building features thick walls, rounded towers, and rectangular windows that reflect both its defensive purpose and residential function.

Burg Liebenstein was probably built between 1360 and 1375, after Wenzel II von Stein sold nearby Altenstein to Landgrave Balthasar in 1360; the knights vom Stein appear here from 1386, founding the Liebenstein line. The name Lybinstein is first recorded in 1406. In 1525 owner Lips von Stein saved the castle from the Peasants' War by feigning submission, and a fire in 1567 damaged parts of it.

The name Liebenstein first appears in 1406 as "Lybinstein", tied to the Liebenstein line of the lords vom Stein, who held the castle from about 1386. After the line died out, the castle served as a widow's residence until 1667. Since 1932 a stairway inside the ruin has led up to a viewing tower, and a log cabin stands at its foot.

Visitors can explore the castle ruins and examine the architecture and layout of the various living quarters. The site is easily accessible from Bad Liebenstein, and pathways around the castle offer multiple viewpoints of the surrounding landscape.

In 1525, during the Peasants' War, lord Lips von Stein saved the castle by pretending to submit to the peasants, sparing it from destruction and plunder. A fire in 1567, set when the imperial execution army took the castle during the Grumbach Feud, damaged parts of it; Hermann von Stein repaired it until 1599.