The objective: The aim of this study was to determine the prevalence of developmental dental anomalies among the intermediate schools' Saudi students in Qassim region of Saudi Arabia. Subjects and Methods: The study was based on clinical examination of a selected dental anomalies among 2826 Saudi children (1562 male and 1264 female) aged 12-14 year from different administrative areas of Qassim, Saudi Arabia.The anomalies were related to the number, size and shape of permanent teeth. Results: The following anomalies were identified: hypodontia (0.4%), supernumerary teeth (0.1%), microdontia (0.4%), peg-shaped lateral incisors (0.6%), macrodontia (1.7%), dens in dent (0.1%) and talon cusp (1.0%).These anomalies were more prevalent in female than male children. Conclusion: The prevalence of the dental anomalies among 12-14 years old school in Qassim area showed to be higher than the recommended international rates.