Aim: India has one of the fastest growing youth populations in the world and adolescent girls of age 13 to 19 year constitute nearly to 66 million. Nutritional deficiencies have far reaching consequences, especially in adolescent girls. Adolescents are more vulnerable to malnutrition. 1. To assess the nutritional status of teenage adolescent girls and 2. To determine the association between socio demographic profile and nutritional status. Methodology: A cross sectional study __ampersandsignnbsp; was carried out to assess the association between socio demographic profile and nutritional status of teen age adolescent girl in Varanasi city. A total no 418 teen age adolescents of 13 to 19 years were selected from urban slum of Varanasi during 2016. Results __ampersandsignamp; Discussion: Nutritional status was assessed by anthropometric measurements. Result shows that 60.3% of adolescent girls were undernourished l 35.2% were normal and only 4.6% were overweight. Age and socio economic status of adolescent girls were significantly associated with their nutritional status (p __ampersandsignlt; 0.05). Conclusion: It was found that higher proportions of adolescent girls were undernourished. This indicates that adolescents in urban slums need health awareness and importance of nutrition to maintain nutritional status.__ampersandsignnbsp;