The aim of this study was to examine the trends of postgraduate theses in psychology, psychiatry, and education related to positive psychology in Turkey. The sample consisted of 204 masters’ and doctoral theses written in the fields of psychology, psychiatry, and education in relation to positive psychology between 2005 and 2015 for which access was permitted. The “Thesis Classification Form” prepared by the researchers was used as a data collection tool. The findings are presented with percentage and frequency tables. The content analysis technique was used for analysis. Studies conducted in the field of positive psychology have increased in recent years. Studies were mostly conducted on the subject of life satisfaction, based on the quantitative method and screening model, in the field of psychology, with university students. The findings obtained in this study will contribute to the work of researchers who study positive psychology