Creating and maintaining a learning organization is a competitive advantage, which would be the result of valuable outcomes such as innovation, efficiency and the better convergence with environment. In addition, learning is the best way to preserve life, survival and growth of organizations in future. In this regard, this study examined the relationship between trust and learning organizations. This study had one main hypothesis and five sub-hypotheses. Research method was descriptive, and t-test and correlation tests were used to determine the relationships between variables. The statistical populations of this study were employees and faculty members of Payam Noor University in east Azerbaijan province, Iran. The results of this study show that there was a meaningful and positive relationship between trust in organization and learning organizations. Therefore, it is recommended that organizations dismantle the barriers of trust, be promoted the trust-builder interactive relationships; be improved and be promoted the mechanisms of interpersonal communications. The firms also have to develop competencies, empower and promote the spirit of cooperation. On the other hand, organizations must prioritize the fostering and promoting the strategic and interactive thinking of staff.