Karinainen is a former municipality of Finland. It was merged to Pöytyä in the beginning of 2005.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Karinainen.vaakuna.svg/105px-Karinainen.vaakuna.svg.png)
It was located in the province of Western Finland and was part of the Southwest Finland region. The municipality had a population of 2,457 (2004) and covered an area of 92.41 km² of which 0.09 km² was water. The population density was 26.73 inhabitants per km².
The municipality was unilingually Finnish.
60°40′N 022°46′E / 60.667°N 22.767°E