Niinikoski

== Finnish == === Etymology === niini +‎ koski === Pronunciation === IPA(key): /ˈniːniˌkoski/, [ˈniːniˌko̞s̠k̟i] Rhymes: -oski Syllabification(key): Nii‧ni‧kos‧ki Hyphenation(key): Niini‧koski === Proper noun === Niinikoski a Finnish surname ==== Declension ==== ==== Statistics ==== Niinikoski is the 1670th (tied with 3 other surnames) most common surname in Finland, belonging to 509 individuals, according to August 2025 data from the Digital and Population Data Services Agency of Finland.