SUMMARYCroatia's accession to the EU has brought new challenges and issues in researching and analysing migration flows and trends as well as attitudes and perceptions of real and potential newcomers. The aim of this paper is to explore attitudes of the residents of the two most easterly Croatian counties towards two distinct categories of newcomers: immigrant workers and asylum seekers. The research was conducted shortly after Croatia's entry into the EU, in September 2013, and the presented data are a part of a larger survey that included various migration and ethnicity issues. The survey was applied on a convenience sample of 1 110 adult respondents in two counties: Osijek-Baranja and Vukovar-Srijem. Data were analysed in a series of multivariate procedures. Results indicated significant perceptions of immigrant workers within the dimension of cultural threat, along with the expression of a considerable degree of social distance towards them. Asylum seekers were further perceived as a security and economic threat. Within two analysed regression models, the effects on attitudes towards immigrant workers and asylum seekers were similar. Among the spectrum of socio-demographic variables, a statistically significant effect on both dependent variables came from age and political orientation, indicating that older and politically right-oriented respondents expressed more negative attitudes towards both groups. Among other socio-demographic variables, education was significant in predicting attitudes towards immigrant workers, while ethnicity was significant in predicting the attitudes towards asylum seekers. The second model analysed the effect of selected political attitudes and value orientations resulting in significant prediction of negative attitudes towards both groups by pronounced conservativism, support of aggression and submission, social-dominance, dominant submisMigracijske i etničke teme 32 (2016), 1: 91-122 92 sive authoritarianism and social alienation, rejecting socially oriented values and expressing greater interest in politics. Differences in prediction of dependent variables indicated that more liberal and better educated respondents had more positive attitudes towards immigrant workers, while Serbs (in comparison to Croats) and respondents rejecting anti-EU orientations had a more positive perception of asylum seekers. The results were compared to other relevant research, including the discussion of observed differences and similarities, and recommendations for further research.