-kki is a Finnish suffix/diminutive suffix used to create (diminutive forms of) female names.
Most of the names containing this ending were particularly popular between 1930 and 1960 in Finland.  
List of Names with the suffix -kki
- ↑ Rolf Klemmert, Ilkka Rekiaro: Gummeruksen suomi-saksa-suomi-sanakirja (1999)
- ↑ Kustaa Vilkuna: Etunimet (1990)