Introduction: Malnutrition among under-five children is a topic of major concern for the health authorities in India. Uttar Pradesh is the most populous state of India which contributes 16.50% of India__ampersandsignrsquo;s total population. There is no improvement in the nutritional status of children in Uttar Pradesh over the years. Aim: The present paper aims to assess the risk factors associated with malnutrition among under five-year children in Uttar Pradesh. Materials and Methods: This analysis is based on the data from the National Family Health Survey (NFHS-4, 2015-16). Stunt ing, wasting and underweight act as dependent variables. Various socio-economic and demographic factors like age, literacy, schooling, religion, caste/tribe, etc were taken as independent variables. The logistic regression technique is used to estimate the odds of being malnourished. Results: Age of child and mother__ampersandsignrsquo;s education, wealth index and preceding birth interval had a significant association with stunting and underweight. The result shows that age (odds ratio__ampersandsigngt;1) had a positive and preceding birth interval, mother__ampersandsignrsquo;s education and wealth index had a negative relation with stunting. Conclusion: The deeper the roots the greater the fruits. Similarly, the more healthy, more educated and more aware the mother will be, the more nourished the baby will be. Therefore the government should spread awareness of birth spacing among parents and should enhance the medical facilities for mothers and their newborn children so that they can be assessable to people belonging to poor families.