Back আম্ফোয়ে চিয়াং সায়েন BPY Chiang Saen Catalan Amphoe Chiang Saen (distrito sa Thayland) CEB Amphoe Chiang Saen German Chiang Saen district English Distretto di Chiang Saen Italian チエンセーン郡 Japanese ឈៀងសែន Cambodian 치앙샌군 Korean Chiang Saen NB
District in Thailand 
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| Situering | |||
| Provincie | Chiang Rai | ||
| Coördinaten | 20°16'30"NB, 100°5'18"OL | ||
| Basisgegevens | |||
| Oppervlakte | 422 km² | ||
| Inwoners (2008) |
47.141 (111,7 inw./km²) | ||
| Geocode | 5708 | ||
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Amphoe Chiang Saen (Thai: เชียงแสน) is een amphoe in de changwat Chiang Rai.