

A former municipality in Finland, established in 1932 from parts of Akaa, Lempäälä, and Vesilahti. Viiala was merged on 1 January 2007 with Toijala, the new town being named as Akaa.
Between 1932 and 1997 Viiala was part of the Province of Häme (Hämeen lääni in Finnish, Tavastehus län in Swedish), and between 1997 and 2007 part of the Province of Western Finland (Länsi-Suomen lääni in Finnish, Västra Finlands län in Swedish).