The chapter at hand consists of four major subsections. First, the chapter starts with a brief description of the relevant countries of Western Europe (i.e., Austria, Belgium, France, Germany, the Netherlands, and Switzerland) with respect to general characteristics (e.g., location, size, number of inhabitants, official languages, form of government, Human Development Index, averaged happiness according to the World Database on Happiness, policies that are in line with the basic, positive psychological assumptions). Second, the chapter continues by giving a methodological description about how major positive psychologists were identified for each of the countries in Western Europe (e.g., searching for relevant members of national or European Positive Psychology associations, authors in central academic journals, keynote speakers at conferences). Furthermore, the chapter provides an overview on relevant positive psychologists of each of the countries. This overview includes short biographies, and highlights the general contributions to the development of the field (e.g., foundation of an association, offering courses on Positive Psychology). Additionally, there is a description of the more specific contributions of each of presented positive psychologists (i.e., with respect to the development of new theories, research topics, assessment tools, and/or intervention methods). Third, suggestions for the future of Positive Psychology in Austria, Belgium, France, Germany, the Netherlands, and Switzerland are given. This includes a discussion on supporting and hindering conditions in this region that influence research on and dissemination of Positive Psychology. Fourth, the chapter closes with a section providing an overview and contact information about national associations and positive psychologists presented in the chapter at hand as well as reading recommendations.