| Reichenstein Castle | |
| Built: | 1239 (first mention) |
| Type: | hill castle |
| Condition: | preserved |
| Location: | Arlesheim |
| Coordinates: | 47.4968°N 7.6291°W |
| Map Type: | Canton of Basel-Land#Switzerland |
| Code: | CH-BL |
Reichenstein Castle (German: Burg Reichenstein) is a castle in the municipality of Arlesheim in the canton of Basel-Land in Switzerland. It is a Swiss heritage site of national significance.[1]
It is one of four castles on a slope called Birseck that confines the plain of the Birs river and is the sister castle to Birseck Castle.
1245-1813 the castle was a property of the Swiss noble family Reich von Reichenstein. This family hold also the Château de Landskron (France) and Inzlingen Castle (Germany).