Guttenberg Castle, Rock castle in Rhineland-Palatinate, Germany.

Guttenberg Castle is a ruined rock castle on the 503 m Schlossberg, about three kilometres west of Oberotterbach in the Upper Mundat Forest. Its summit occupied roughly 50 by 25 metres; of the three towers of the upper castle only the bergfried survives, alongside beam and post holes and a rock-cut stair once linking it to the lower castle, where wall sections, foundations and a gate remain.

The first confirmed record dates from 1246, when Isengard of Falkenstein transferred the castle to King Conrad IV on behalf of her husband, the imperial steward Philip I of Falkenstein. In 1317 half was enfeoffed to the counts of Leiningen, the other half passing to the Electoral Palatinate. In 1525 a Lorraine peasant mob destroyed the castle, which was never rebuilt.

The castle ruin sits along hiking trails in the Palatinate Forest, and walkers often come across it without having planned a dedicated visit. The remaining stone walls give a clear sense of how large the original structure once was.

The ruin is reached by foot along hiking trails in the Palatinate Forest, and sturdy shoes are a good idea given the uneven, hilly ground. From the elevated position, there is a clear view over the surrounding forest.

The castle stood very close to the French border, which made it a contested point between different rulers over many generations. This explains why its ownership changed hands so often throughout its history.