| Klerken | |
| Settlement Type: | Deelgemeente |
| Subdivision Type: | Country |
| Subdivision Name: | Belgium |
| Subdivision Type1: | Province |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Houthulst |
| Coordinates: | 50.9978°N 2.9056°W |
| Area Total Km2: | 7.44 |
| Population Note: | Source: NIS |
| Population As Of: | 2005 |
| Population Total: | 1831 |
| Population Density Km2: | 246 |
| Postal Code Type: | Postal code |
| Postal Code: | 8650 |
| Area Code Type: | Area code |
Klerken is a village in Province of West Flanders in Belgium. It forms a part of the commune of in Houthulst. It was first mentioned in a letter by Arnulphus the Elder from 961 and the village's archives survive from as early as 1653.
Notable buildings include the Vredesmolen (a damaged windmill which is a war memorial) and the village's church of St Laurence (Sint-Laurentiuskerk).