The article deals with the sociological, demographical and demogeographical aspects of the singles phenomenon in Europe and in Slovakia. Since issues such as the increasing number of singles, cohabitations, and individualism are being reflected in everyday popular culture, clichés arise depicting the singles as people who are high earning egoists having uninhibited sexual life. The main aim of the article is to overview the existing definitions of such phenomena since in Slovakia they are not yet conceptually, empirically and critically elaborated. Another aim of the article is to depict general situation in the European countries paying special attention to the Slovak-specific features. The singles represent and will represent serious structural element of the future demographical change. That is why they enter population forecasting and should be concerned in the population policy decisions and family planning.