Buschwiller (German: Buschweiler) is a commune in the Haut-Rhin department in Alsace in north-eastern France.

Buschwiller is a village located in the French part of the agglomeration of Basel.

It is adjacent to the Swiss town of Schönenbuch.

Due to its position, in the far north-east of France, Buschwiller features a semi-continental climate (Köppen : Cfb), characterized by warm to hot, humid summers and cool to cold, drier winters.

It usually snows every year, but without substantial accumulation.