The purpose of this study is to analyse the relationship between the experience of belonging to a discriminated group and the tendency to feel trust in other people and society. The two main questions the study seeks to answer are: • What significance does the experience of belonging to a discriminated group have for the inclination to feel trust in others and in society within the 18 EU countries? • To what extent can the impact of social success, including the experience of belonging to a discriminated group, explain the variations in levels of trust in others and in society within the 18 EU countries? This is a theory-testing and theory-developing study with explanatory ambitions. In order to answer the questions posed in the study, statistical analyses have been carried out, mainly in the form of bivariate cross tabulation and multivariate binary logistic regression. The result confirms the thesis about the impact of social success since the factors gender, age, education, income and experience of trauma all have an impact on general as well as social trust. However, none of these factors were as important as the experience of belonging to a discriminated group, which by far had the greatest impact on the variations in trust. The study has thereby contributed to the development of the thesis on social success by proving that the experience of being a member of a discriminated group should be acknowledged as one of the negative experiences that with a high probability leads to increased distrust.