| Official Name: | Bjena Gewog |
| Native Name: | སྦྱེད་ནག་ |
| Settlement Type: | Gewog |
| Mapsize: | 350px |
| Subdivision Type: | Country |
| Subdivision Name: |  Bhutan |
| Subdivision Type1: | District |
| Subdivision Name1: | Wangdue Phodrang District |
| Unit Pref: | Metric |
| Timezone: | BTT |
| Utc Offset: | +6 |
Bjendag Gewog (Dzongkha: སྦྱེད་ནག་) (or Bjena) is a gewog (village block) of Wangdue Phodrang District, དབང་འདུས་ཕོ་བྲང་། Bhutan.[1] [2] The Bjendag Gewog is located 1350-3400m above sea level, 15km away from the Dzongkhag Centre. It has a population of 2470, consisting of 1220 males and 1250 females. Bjendag is considered a 'sloppy' area, as the soil is predominantly sandy loam and land use is generally dry and wet land farming. There are 5 Chiwogs in Bjendag:[3]
1) Phuentsho Gang (ཕུན་ཚོགས་སྒང)
2) Tashitokha (བཀྲིས་ཏོ་ཁ)
3) Wache (ཝ་ཅད)
4) Themakha
5) Khatokha
Houses are of mainly traditional type made up stone and wood. Their primary source of income are from cash crops such as potato and vegetables.[4]
Wache Dzong is located here.[5]