Raseborg is a town in Finland, located in the southern coast of the country. Raseborg is situated in the western part of the Uusimaa region. The population of Raseborg is approximately 27,000, while the sub-region has a population of approximately 40,000. It is the 39th most populous municipality in Finland.

Uusimaa is a region of Finland. It borders the regions of Southwest Finland, Tavastia Proper (Kanta-Häme), Päijänne Tavastia (Päijät-Häme), and Kymenlaakso. Finland's capital and largest city, Helsinki, along with the surrounding metropolitan area, are both contained in the region, and Uusimaa is Finland's most populous region. The population of Uusimaa is 1,734,000.