Students who are tolerant are students who are able to control attitudes in looking at differences, not only in the form of omission but also have a rationale for why this omission is done. Even if we disagree with other people's positions, attitudes, and actions, we must still respect them. Religiosity and social prejudice are indicated to be factors that influence the attitude of tolerance in Lampung ethnic students. This study aims to analyze the relationship between religiosity and social prejudice with tolerance in Lampung ethnic students, analyze the relationship between religiosity and tolerance in Lampung ethnic students, and analyze the relationship between social prejudice and tolerance in Lampung ethnic students. This research is a quantitative study using a psychological scale with a Likert scale model as a research data collection method, namely the tolerance attitude scale (α = 0.905), religiosity scale (α = 0.941), and social prejudice scale (α = 8.33). The population in this study were students at UIN Raden Intan Lampung, the sample in the study was 100 students of Lampung ethnicity who were selected using the Quota Sampling technique. Analysis of research data was carried out using two predictor regression analysis techniques which in the calculation process were assisted by the SPSS 21 computer program. The results showed that there was a significant relationship between religiosity and social prejudice with tolerance in Lampung ethnic students. The results of the regression analysis showed that the two independent variables gave an effective contribution of 13.4% towards tolerance (R2=0.134; R=0.367; F=7.529; sig. 0.001 (p<0.01), while the remaining 86.6% was influenced by other variables outside of this study. X1-Y=0.330; sig. 0.000 (p<0.01) meaning that there is a significant positive relationship between religiosity and tolerance attitude. X2- Y= -0.224; sig. 0.013 (p<0.05) meaning that there is a significant negative relationship between social prejudice and attitudes tolerance.