The aim of the present study is to identify primary school principals' self-monitoring skills. The study adopted the general survey model and its population comprised primary school principals serving in the city of Diyarbakir, Turkey, while 292 of these constituted the sample. Self-Monitoring Scale was used as the data collection instrument. In data analysis, descriptive statistics, t-test, homogeneity of variances, One-Way Analysis of Variance (ANOVA) and Tukey's test were used. The primary school principals' mean self-monitoring score was found to be 9.72. In addition, primary school principals' self-monitoring skills did not significantly vary in terms of gender and length of service. On the other hand, primary school principals who were class teachers had a higher level of self-monitoring skills than subject teachers; Faculty of Education graduates had a higher level of self-monitoring skills than those of other faculties', teachers serving as principals had a higher level of self-monitoring skills than both principals and assistant principals at a significant level.