Nimipäiväkalenterien

Nimipäiväkalenterien, commonly known as name day calendars, are lists of given names associated with specific dates throughout the year. These calendars are particularly prevalent in certain European countries, with Finland and Sweden having the most widely recognized traditions. The concept originates from the historical practice of associating saints' feast days with specific dates, and over time, personal given names became linked to these days.

In many countries that observe name days, it is customary to celebrate a person's name day, often with as much, if not more, enthusiasm than their birthday. Gifts, greetings, and special meals are common ways to acknowledge the occasion. The specific names included in a name day calendar and the dates they are assigned to can vary significantly between countries and even within different calendar versions within the same country.

Finland's name day tradition is notable for its dual calendars: one official calendar managed by the University of Helsinki and a separate, popular one maintained by a private almanac publisher. This dual system reflects the organic evolution of the tradition and the inclusion of both traditional and more contemporary names. Sweden also has a long-standing name day tradition, with its own established calendar. Other countries, such as Estonia, Latvia, and various Eastern European nations, also have their own variations of name day customs and calendars. The purpose of a nimipäiväkalenteri is to provide a reference for these celebrations and acknowledge the cultural significance of personal names.