| Official Name: | Chrea |
| Native Name: | الشريعة |
| Settlement Type: | Commune and town |
| Pushpin Map: | Algeria |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Algeria |
| Subdivision Name1: | Blida Province |
| Subdivision Type2: | District |
| Unit Pref: | Imperial |
| Population As Of: | 2008 |
| Population Total: | 783 |
| Utc Offset: | +1 |
Chrea is a town in Algeria, located in Blida Province, Ouled Yaïch District, in a mountainous area named Tell Atlas, near Blida. It had a population of 783 in 2008.[1]
In its municipality is situated the Chréa National Park, one of the largest national parks of the country, and a ski resort.[2]
Within the national park is one of the few relict populations of the endangered primate, the Barbary macaque, Macaca sylvanus; this species of primate originally had a much wider range in Northern Algeria and Morocco.[3]
Located in the Atlas Mountains, at 1458m (4,783feet) above sea level, Chréa has a cool Mediterranean climate, with an average annual precipitation of 916mm. Summers are warm and dry and winters are chilly and wetter, with snowfalls. This climate is described by the Köppen climate classification as Csb. This is one of the coldest places in Algeria.