Malnutrition is one of the rapidly growing health problems affecting the world at present. Children affected are not only at risk for significant health problems, but also face many psychological and social consequences, including low self-esteem. School age children are specifically vulnerable to develop poor self esteem specially when their peers find them physically unattractive. Thus malnutrition, whether obesity or undernourishment, plays a significant role. This research tackles the significant association of malnutrition in school-aged children's self esteem.