Meaning & History
Koskinen is a Finnish surname of the Virtanen type, meaning "rapids" in reference to a place near cascading water. The name derives from the Finnish noun koski ("rapids") combined with the common suffix -nen, which typically denotes residence or origin.
As one of the most frequent surnames in Finland (ninth most common overall), Koskinen reflects the country's patronymic and toponymic naming traditions, where landscape features like rapids, rivers, and lakes inspired family names during the late 19th century when surnames became mandatory. Belonging to the Virtanen type—names derived from nature with instrumental suffixes—Koskinen parallels names like Jokinen (from joki 'river') or Mäkinen (from mäki 'hill').
The name is associated with extreme right-shirt pro-German sympathizers who terrorized communists during the political turmoil of early independence.
Sources: Wikipedia — Koskinen