Rasku

Rasku is a Finnish-language toponym and surname. It is used as a place name for several small localities in Finland and exists as a family name among Finnish-speaking populations. The exact origin of the name is uncertain; it is typical of Nordic toponymy where place names reflect landscape features or historical settlement terms.

In geographic use, Rasku designations are found in multiple municipalities across Finland, most often describing small rural communities or neighborhood-level areas within larger towns. These places usually have limited administrative status and are recognized in local land records, maps, and postal references rather than as independent municipalities.

As a surname, Rasku is relatively uncommon. Individuals bearing the name have appeared in various professional domains, including sports, academia, and public life in Finland; the surname is also present in diaspora communities.

Rasku does not denote a single well-known historic site or event, but rather a toponymic and familial name with several independent uses across the Finnish-speaking world.