European Association for Population Studies: EAPS is an international and multidisciplinary forum for the study of Europe's population.
European Society for Population Economics (ESPE): Links to conference, teaching of population economics, and summerschools.
Finnish Demographic Society / Suomen Väestötieteen Yhdistys ry: Information on the activities and publications (both in Finnish and English).
International Union for the Scientific Study in Population: Promotes scientific studies of demography and population-related issues. An international professional association for individuals interested in population studies.