Isokyrö (Finnish: [ˈisoˌkyrø]; Swedish: Storkyro) is a municipality of Finland.

It is located in the South Ostrobothnia region, 43 kilometres (27 mi) from Vaasa.

[1] The population density is 12.2 inhabitants per square kilometre (32/sq mi).

According to Traficom, Isokyrö is the most motorized municipality in Finland with 718 cars per thousand inhabitants.

[6] Isonkyrö's neighboring municipalities are Ilmajoki, Kauhava, Laihia, Seinäjoki, Vaasa and Vörå.