The study aimed to determine the correlation between self-efficacy and work performance as mediated by the work environment. To support the theory of study, literature was reviewed. The study used the descriptive correlational research design and to gather the data, questionnaires were used. The population of the study was all the faculty and employees of the Divine Word Colleges in the Ilocos Region, Philippines. The study found that their self-efficacy is high and it affects the work performance specifically task and contextual work performance but no correlation with the counterproductive behavior. The study found that work environment affects self-efficacy and work performance along with the three dimensions such as task performance, contextual performance, and counterproductive work behavior. Therefore, the hypotheses of the study are accepted.