Purpose: This study aimed to examine the role of informal learning and the organizational learning capacity in learning motivation and professional ethics of faculty members in the Eastern Azerbaijan ′s Universities. Methodology: It used survey approach. Statistical population included 2500 individuals of faculty members in Eastern Azerbaijan from which 400 people were selected using random sampling. Data was collected using four standard questionnaires. To analyze data and examine the relationships of the variables, correlation method and stepwise regression were used. Findings: Results showed a positive and significant correlation between informal learning variables and learning motivation and professional ethics. Also, a positive and significant correlation was found between organizational learning capacity, learning motivation, and professional ethics. Maximum correlation coefficient belonged to informal learning and learning motivation (r=0.73). Based on the findings, the regression model for predicting learning motivation and professional ethics through informal learning and learning capacity is significant. Conclusion: Regarding the findings, it can be concluded that any increase in informal learning and organizational learning capacity is associated with increased academic motivation and professional ethics; hence, attention to informal learning and learning capacity in East Azarbaijan universities It can be of great importance in increasing the learning motivation and professional ethics of the faculty members of the universities of East Azarbaijan.