Amphoe Wiang Sa
Amphoe Wiang Sa is the name of two counties in Thailand:
- Amphoe Wiang Sa ( Nan ) ( Thai: เวียง สา ), Nan Province, Northern Region of Thailand
- Amphoe Wiang Sa ( Surat Thani ) ( Thai: เวียงสระ ), Surat Thani province, southern region of Thailand
- Disambiguation