| Castell de l'Areny | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Province of Barcelona#Spain |
| Pushpin Map Caption: | Location in Catalonia |
| Coordinates: | 42.1747°N 1.9469°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Barcelona |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Berguedà |
| Leader Party: | CiU |
| Leader Title: | Mayor |
| Leader Name: | Pedro Raja Carmona (2015)[1] |
| Area Footnotes: | [2] |
| Area Total Km2: | 24.4 |
| Elevation M: | 954 |
| Population Density Km2: | auto |
Castell de l'Areny (in Catalan; Valencian pronounced as /kəsˈteʎ ðə ləˈɾɛɲ/) is a small town and municipality in the comarca of Berguedà, Catalonia. The old town of Sant Romà de la Clusa is within the municipal limits.