Adolescence is the transition period between childhood and adulthood in where rapid physical, mental, emotional and social development takes place. Adolescence females are at greatest risk for nutrient deficiency and it badly affects to their education and physical development. Nutritional status of female adolescents is important not only for their growth and development, but also for future pregnancies. The objective of this study was assessing the nutritional status of adolescent school girls in a rural area, located in North Western Province in Sri Lanka by using anthropometric measurements. A total number of 110 adolescent school girls, age range of 13 to 15 years, studied schools in Pannala sub-zonal education division were randomly selected after briefly explained the purpose of the study and getting a written consent from their parents. Anthropometric measurements were measured. Epi info version 3.4 was used to generate Z scores and percentiles for weight for age, height for age and Body Mass Index (BMI) for age. According to WHO cut off subjects were categorized in to underweight, stunting, overweight and obese. In the study sample 20.7%, 19.8% 19.1%, 9.1%, 0.9% and 52.7% were underweight, stunting, wasting, overweight, obese and normal nutritional status, respectively. Since 46 % of the studied subjects were under-nutritional status appropriate intervention should be directed towards adolescent school girls to improve their nutritional status and education for healthy diets.