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Wang Prachan (Thai: วังประจัน) is a sub-district (tambon) of Khuan Don District, Satun Province of Thailand, at the boundary to Malaysia.
Thai Hwy 4181, which passes through the sub-district, connects Satun with Wang Kelian in Malaysia.
As of 2007
, the sub-district has a population of 2,380.
The sub-district is led by a tambon administrative organization (TAO), which was established in 2004. The sub-district itself was established in 1914, and is divided into four villages (muban).
||Wang Prachan Tai
Wang Prachan checkpoint seen from Malaysian territory.
Morning market at Wang Prachan, just before the border crossing into Malaysia.
Coordinates: 6°44′52″N 100°9′9″E / 6.74778°N 100.15250°E