Finland has two official languages, Finnish and Swedish. Many places in the country have different names in Finnish and Swedish, both being official endonyms.
| English name (often the same as the Finnish name) | Finnish name | Swedish name |
|---|---|---|
| Central Finland | Keski-Suomi | Mellersta Finland |
| Central Ostrobothnia | Keski-Pohjanmaa | Mellersta Österbotten |
| Kainuu | Kainuu | Kajanaland |
| Kymenlaakso | Kymenlaakso | Kymmenedalen |
| Lapland | Lappi | Lappland |
| North Karelia | Pohjois-Karjala | Norra Karelen |
| North Ostrobothnia | Pohjois-Pohjanmaa | Norra Österbotten |
| Pohjois-Savo | Pohjois-Savo | Norra Savolax |
| Ostrobothnia | Pohjanmaa | Österbotten |
| Päijät-Häme | Päijät-Häme | Päijänne-Tavastland |
| Pirkanmaa | Pirkanmaa | Birkaland |
| Satakunta | Satakunta | Satakunta |
| South Karelia | Etelä-Karjala | Södra Karelen |
| South Ostrobothnia | Etelä-Pohjanmaa | Södra Österbotten |
| Etelä-Savo | Etelä-Savo | Södra Savolax |
| Southwest Finland | Varsinais-Suomi | Egentliga Finland |
| Kanta-Häme | Kanta-Häme | Egentliga Tavastland |
| Uusimaa | Uusimaa | Nyland |
| Åland [1] | Ahvenanmaa | Åland |
Some Finnish municipalities with endonyms in both Finnish and Swedish, the majority language of the municipality stands first:
In addition to Helsinki other bilingual towns and municipalities in Finland often have bilingual names for districts, villages, and places in nature, such as lakes and rivers. Some examples are: