Annisa Febriana Sulaiman. 2020. The Impact of Extraversion and Brand Trust on Brand Evangelism at Wardah (Case Study on Undergraduate Students of Economics and Business Faculty of Mulawarman University), under Dr. Saida Zainurossalamia ZA, S.E., M.Si. as the advisor. The purpose of the study is to analyze the influence of extraversion and brand trust on brand evangelism at Wardah in Samarinda, specifically on the undergraduate students of Economics and Business Faculty of Mulawarman University. The sampling method used was a purposive sampling technique. Data sampling was obtained using 90 respondents. The data was collected by using online questionnaire given directly to the respondents via Google Form. The analysis technique in this study used the Partial Least Square (PLS) data analysis method with the help of Smart-PLS 3 software, inferential statistics analysis, and descriptive statistics analysis. The results of this study indicates that extraversion has a negative insignificant influence on brand evangelism, meanwhile brand trust has positive significant influence on brand evangelism.