thumb|Location of Äetsä in southwestern [[Finland ]]

thumb|Coat of arms of Äetsä

Äetsä is a former municipality of southwestern Finland. The municipality was founded on 1981 when municipalities of Keikyä and Kiikka were consolidated to a single municipality.

On 1 January 2009, it was consolidated with the municipalities of Vammala and Mouhijärvi to form a new city of Sastamala.

Geography

Äetsä was located in the western Pirkanmaa region, and was part of the former (1997 to 2010) province of Western Finland.

;Demographics

The municipality had a population of 4,797 (November 30, 2008) and covered an area of , of which was water. The population density was .

The municipality was unilingually Finnish.

  • Äetsä area map