Several children immigrate to South Africa every year and it has been shown that some migrant children experience challenges in their host countries. These challenges have been documented to affect their academic performance in school. A total number of 164 immigrant learners from Gauteng schools, in grade 11 and 12 participated in the study. The study first, determined the positive correlation between academic motivation, academic self-concept and perceived support and academic performance. Second, the study established whether academic motivation, academic self-concept and perceived support would predict academic performance. Third, the study determined whether academic self-concept would mediate the relationship between academic motivation and academic performance. Correlation, regression and mediation analyses were used to address the aims of the study. There was a positive relationship between academic motivation, academic self-concept, perceived support and academic performance. Only academic self-concept predicted academic performance. Academic self-concept significantly mediated the relationship between academic motivation and academic performance. The results from the study demonstrate the importance of psychological factors informing immigrant learners’ academic performance in school. / Psychology / M.A. (Psychology)