Interpersonal intelligence is one’s ability to build relation and to understand others’ feelings in order to create mutual relationship between one and another so that harmony could take place. Such ability is important because human are basically social beings, they need mutual assistances. This survey research aims to: 1) analyze the interpersonal intelligence of the students in SMA 3 Negeri Yogyakarta; 2) analyze the religious tolerance attitude of the students in SMA 3 Negeri Yogyakarta; 3) analyze the correlation between the interpersonal intelligence and religious tolerance attitude of the Grade X Students in SMA Negeri 3 Yogyakarta. The method used in this research was quantitative approach with correlational model. The number of the population was 225 students. The sampling technique was cluster random sampling by eliciting 4 heterogeneous classes (classes in which there were students with various religions) out of the total 7 classes in the research location. The total sample obtained was 128, but due to technical problem, there were only 105 distributed questionnaires. The data analysis technique used was Product Moment Correlation analysis supported by SPSS Version 22 for Windows. The research result shows that: 1) the grade X students of SMA 3 Yogyakarta’s interpersonal intelligences are categorized as high, involving 64 respondents (61%); 2) the grade X students of SMA 3 Yogyakarta’s religious tolerance attitudes are categorized as high, including 104 respondents (99%); there is a correlation between the interpersonal intelligence and religious tolerance attitude of the grade X students in SMA Negeri 3 Yogyakarta, with significance value 0,000 and correlation coefficient value 0,409.