The goal of this study is to determine the degree of leadership skills practiced by principals at UNRWA schools. In order to achieve this goal a questionnaire consisting of 56 items was developed, which included two domains: Administrative and Technical skills, and personal and social skills. This questionnaire had been verified in terms of its validity and reliability. The study sample consisted of 400 male and female teachers, distributed according to gender into 185 male and 215 females from UNRWA schools. The main results of the study revealed that the mean score on the administrative and technical skills was 126.63 with a percentage of 77% and on the personal and social skills 77.3 with a percentage of 67%. However, the mean score of the total score was 203.93 with a percentage of 73% which means that the degree of principals' practice of leadership skills was in average. Also, the results showed that there were statistically significant differences between the mean scores of the sample on the administrative and technical skills due to gender variable in favor of females. The study ended with some recommendations relating to enhance the principal's skills in general and for male principals specifically.