The study aims to identify the level of Self- Esteem and its relation to some variables (Gender, Experience years, and Educational stage) among psychologists in schools of the Sultanate of Oman. The study sample consisted of (154) psychologists of both male and female who are working in different stages of study in the schools affiliated with the Ministry of Education in the Sultanate of Oman. The sample of the study consisted of (43) male and (111) female psychologists from (11) governorates of the Sultanate. The descriptive-analytical methodology was used. In order to collect data, the self-esteem questionnaire prepared by the researcher was used. Statistical processing was done using the Statistical Package for Social Sciences (SPSS). The results of the study showed that the level of self-esteem among the psychologists in the Sultanate of Oman at a medium level. There were also no statistically significant differences at the significance level (0.05) in self-esteem among psychologists due to the variables (years of experience, school stage)