Viljakkala is a former municipality of Finland.
It was located in the province of Western Finland and was part of the Pirkanmaa region. The municipality had a population of 2,043 (2003) and covered an area of 224.70 km<sup>2</sup> of which 24.61 km<sup>2</sup> was water. The population density was 10.2 inhabitants per km<sup>2</sup>. Viljakkala was consolidated with Ylöjärvi on January 1, 2007.
The municipality was unilingually Finnish.