Gäu is one of the 10 districts of the canton of Solothurn in Switzerland, found in the center of the canton.

Gäu contains the following municipalities:

Coat of arms	Municipality	Population (Dec 2005)	Area, km²
	Egerkingen	2879	6.93
	Härkingen	1243	5.57
	Kestenholz	1672	8.59
	Neuendorf	1904	7.13
	Niederbuchsiten	967	5.49
	Oberbuchsiten	1829	9.39
	Oensingen	4610	12.03
	Wolfwil	2044	6.89
	Total	17,148	62.02

This short article about Switzerland can be made longer. You can help Wikipedia by adding to it.