Population Register Centre publishes on avoindata.fi website all given names and surnames of Finnish citizens which have more than 20 occurrences in Population Information System as open data. The data is available as CSV files and summary of 1000 most popular names of each table are available as PDF files. The material is updated twice a year.
Given names have been separated into tables of male and female names, where the first table displays occurrences of all given names, the second table displays the occurrences of given name as a first name and the third table displays the occurrences of given name as other than first name. Table of surnames displays the surnames in order of number of occurrences.