Leadership performance is an important topic for in-depth research because it is closely related to records about the results obtained from job functions and during a certain period of time in an organization. The purpose of this study was to analyze the impact of self-efficacy, trust and affective commitment to competitive share leadership in government organizations in South Sumatra Province, Indonesia. The survey was conducted on 230 respondents, namely leaders of organizations/institutions in government. The side technique is done by systematic random sampling. The data analysis technique was carried out by using the Structural Equation Models (SEM) approach with the help of the LISREL program. The results showed that self-efficacy had a negative effect on competitive share leadership, but not statistically significant. The factors of trust and affective commitment have a positive and significant effect on share leadership competitiveness in government organizations in the province of South Sumatra, Indonesia. Attitudes and beliefs from subordinates or employees that the leader can be trusted is a positive guarantee for the existence of the organization. Affective commitment is part of organizational commitment, so leaders must be able to maintain commitment in an organization. The self-efficacy brought about through the process of heredity or birth which is owned by individuals consisting of beliefs about something that is the result of thought, interpersonal interaction, and psychology does not have a significant impact on share leadership competitiveness.