| Pernå | |
| Official Name: | Swedish: Pernå kommun Finnish: Pernajan kunta |
| Native Name: | Swedish: Pernå – Finnish: Pernaja |
| Settlement Type: | Former municipality |
| Mapsize: | 150px |
| Pushpin Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Name: |  Finland |
| Subdivision Type1: | Region |
| Subdivision Name1: | Eastern Uusimaa |
| Subdivision Type2: | Sub-region |
| Subdivision Name2: | Loviisa sub-region |
| Leader Title: | Municipal manager |
| Leader Name: | Ralf Sjödahl |
| Extinct Title: | Consolidated |
| Extinct Date: | 2010 |
| Area Footnotes: | [1] |
| Area Total Km2: | 1107.07 |
| Area Land Km2: | 419.47 |
| Area Water Km2: | 687.6 |
| Population As Of: | 2009-12-31 |
| Population Footnotes: | [2] |
| Population Total: | 3961 |
| Population Density Km2: | auto |
| Demographics1 Info1: | % (official) |
| Demographics1 Info2: | % (official) |
| Demographics1 Info3: | % |
| Demographics1 Info4: | % |
| Demographics2 Title1: | 0 to 14 |
| Demographics2 Info1: | % |
| Demographics2 Title2: | 15 to 64 |
| Demographics2 Info2: | % |
| Demographics2 Title3: | 65 or older |
| Demographics2 Info3: | % |
| Blank1 Name: | Climate |
| Blank1 Info: | Dfb |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Coordinates: | 60.45°N 28°W |
| Postal Code Type: | Postal code |
| Website: | www.pernaja.fi |
Pernå (pronounced as /sv-FI/, Sweden in Swedish ˈpæ̌ːɳɔ/; Finnish: Pernaja) is a former municipality of Finland.
Pernå is located in the province of Southern Finland and was part of the Eastern Uusimaa region. The municipality had a population of 3,961 (31 December 2009) and covered an area of of which 687.6km2 is water. The population density was .
The municipality was bilingual, with the majority being Swedish and minority Finnish speakers.Pernå is the oldest municipality in the Eastern Uusimaa region. The current municipalities of Lapinjärvi, Liljendal and Loviisa were originally part of it. Mikael Agricola, the founder of written Finnish was born in Pernå in the early 16th century. He is also considered to be the "Reformator of Finland" in the transfer from Catholicism to Lutheranism.
Situated conveniently by the coast, and engulfing also a small river, the lands of Pernå were attractive at a time when waterways rather than proper roads provided the means of transport. There are a number of manor houses in the Pernå area - most notably Sarvlaks manor, which dates back to the 1450s - at a time when Finland was a part of Sweden.[3]
The origin of the name "Pernå" is uncertain; some think it links with the Uralic word "Pern" meaning lime- or lindentree. "Å" is Swedish for a small river, i.e. the name then being Lindenriver if translated.
On January 1, 2010, Pernå was amalgamated with Loviisa, Ruotsinpyhtää and Liljendal to form a new municipality of Loviisa.[4]