| Kadey | |
| Settlement Type: | Department |
| Mapsize: | 300px |
| Pushpin Map: | Cameroon#Africa |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Cameroon |
| Subdivision Type1: | Province |
| Subdivision Name1: | East Province |
| Subdivision Type2: | Capital |
| Subdivision Name2: | Batouri |
| Unit Pref: | Imperial |
| Area Total Km2: | 15884 |
| Population As Of: | 2001 |
| Population Total: | 192,927 |
| Population Blank1 Title: | Ethnicities |
| Timezone: | WAT |
| Utc Offset: | +1 |
Kadey (also spelled Kadéï, Kadéi, Kadeï or Kadei) is a department of East Province in Cameroon. The department covers an area of 15,884 km and as of 2001 had a total population of 192,927.[1] The capital of the department lies at Batouri.
The department is divided administratively into 7 communes and in turn into villages.