Are Castle is the ruin of a hill castle that stands at a height of 240 m above sea level above the village of Altenahr in the German state of Rhineland-Palatinate. It was built around 1100 by Count Dietrich I of Are and is first recorded in 1121.
Since 1965 the Are Gymnasium – a local grammar school – in Bad Neuenahr-Ahrweiler has borne the name which is derived from the castle and its eponymous noble family.