Socioeconomic characteristics have some positive or negative impacts on individuals' well-being. However, few studies have been conducted to investigate the effect of socioeconomic characteristics on university students' well-being. This study addresses this gap and presents survey results among eight European countries: France, Germany, Italy, Spain, Poland, Romania, The Russian Federation and Turkey. It was utilized an online survey based on closed-ended questions, collected from a sample (N = 796). Multiple linear regression was used to analyze the data. This study indicated that being aware of personal strength positively affected well-being. Also, positive expectations for future financial security were positively associated with university students' well-being. Having a high social interaction in society has a little positive effect on well-being. Furthermore, the study indicated the importance of government-provided social supports as students from France and Germany had a higher level of well-being score. Social and financial support may be useful to improve the overall well-being of university students. Policymakers should reconsider the significance of social welfare for society.