36°19′N 1°08′E / 36.317°N 1.133°E
Tadjena | |
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Commune and town | |
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| Country |  Algeria |
| Province | Chlef Province |
| District | Abou El Hassan |
| Time zone | UTC+1 (CET) |
Tadjena (Arabic: تدجنة) (formerly Fromentin) is a town in the Dahra mountains in Chlef Province in central Algeria, with a population of about 23,000; its altitude is 438 m.