Peräseinäjoki

Peräseinäjoki (Finnish pronunciation: [ˈperæˌsei̯næˌjoki]) is a former municipality of Finland. It merged with the town of Seinäjoki on January 1, 2005.

It was located in the province of Western Finland and is part of the Southern Ostrobothnia region. The municipality had a population of 3,653 (2004) and covered an area of 459.13 km2 of which 14.11 km2 was water. The population density was 8.2 inhabitants per km2.

The municipality was unilingually Finnish.