Biru County
| Biru County 比如县 • འབྲི་རུ་རྫོང་། Diru, Driru, Biru | |
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| Location of Biru County (red) within Nagqu City (yellow) and the Tibet Autonomous Region | |
| Coordinates: 31°46′39″N 93°33′00″E / 31.77750°N 93.55000°E | |
| Country | China | 
| Autonomous region | Tibet | 
| Prefecture-level city | Nagqu | 
| County seat | Biru | 
| Area | |
|  • Total | 11,683.45 km2 (4,511.01 sq mi) | 
| Population  (2020) | |
|  • Total | 72,618 | 
| • Density | 6.2/km2 (16/sq mi) | 
| Time zone | UTC+8 (China Standard) | 
| Website | www | 
| Biru County | |||||||||||
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| Chinese name | |||||||||||
| Simplified Chinese | 比如县 | ||||||||||
| Traditional Chinese | 比如縣 | ||||||||||
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| Tibetan name | |||||||||||
| Tibetan | འབྲི་རུ་རྫོང་། | ||||||||||
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Biru County (Tibetan: འབྲི་རུ་རྫོང་།; Chinese: 比如县) is the most populated county within Nagqu of the Tibet Autonomous Region, China. The name means "female yak". Either of the following pronunciations can be considered correct in Standard Tibetan: [bìru] ~ [pìru] (conventionally written Biru in English) or [ɖìru] ~ [ʈìru] (conventionally Driru).