A
- Ahlainen – became part of Pori in 1972
- Aitolahti – became part of Tampere in 1966
- Akaa – was divided in 1946 between Toijala, Kylmäkoski, Sääksmäki and Viiala. The name was re-introduces in 2007 when the municipalities of Toijala and Viiala were consolidated.
- Alahärmä – consolidated with Kauhava in 2009
- Alatornio – became part of Tornio in 1973
- Alaveteli – consolidated with Kronoby in 1969
- Angelniemi – became part of Halikko in 1967
- Anjala – the municipalities of Anjala and Sippola were consolidated in 1975 to form the Anjalankoski market town
- Antrea – was lost to the USSR in 1944
- Anttola – became part of Mikkeli in 2001
- Askainen – was consolidated with Masku in 2009
- Artjärvi – was consolidated with Orimattila in 2011
Read more about this topic: Former Municipalities Of Finland