This is a study that approaches questions concerning first names in a multiculturalcountry, Sweden, from a longitudinal perspective. The names studied are Finnish firstnames that have been used in Sweden over the periods 1900–89 and 2004–13. Despitethe geographical proximity between Sweden and Finland, the languages Swedish and Finnish belong to different families, a fact that is often reflected in first names – giving rise either to completely different names or to specific spellings. This is a pilotstudy that raises more new questions than it answers, and the tentative focus of thediscussion is on name fashions (a revival of Old Norse names and Scandinavianism innaming) and external influences on name giving (immigration). The study shows thatFinnish first names were most frequent in Sweden among citizens born between 1920and 1969. Subsequently, their frequency has shown a marked decline.