Introduction: The best indicator of the global well- being depends on child nutritional status. Malnutrition among children in rural areas in most developing countries therefore considered a major health problem.

Objective: This study was carried out to assess the nutritional status of the under five childrenin some selected villages of RupgonjUpazila, Narayngonj.

Methods: This descriptive type of cross sectional study was conducted for the period of six months (from January to June 2017). A convenient sampling technique was used to select 215 samples from the children (1-5 years of age) population. Data were collected from the mother of selected children by face to face interview through a pretested questionnaire. A checklist duly pre-tested was used for collecting anthropometric data of the children and the applied techniques were: (a) Measurement of Mid Upper Arm Circumference (MUAC) by measuring tape (b) Weight was measured by weighing machine and (c) Height was measured by meter stick. The data were analyzed manually & by computer and presented in the form of tables and graphs in line with stated objectives.

Results: The study revealed that most (83.73%) of the children were more than 1year age and there were 50.23% male and 49.77% female. Most (76.27%) of the mothers of the children were within the age group of 18-30 years. It was also found that majority (62.33%) mothers were illiterate and most (48.84%) of the families had monthly income within taka 10001-20000 only. In this study majority (59.53%) of the mothers practiced exclusive breast feeding for 5 months and 81.86% children were immunized. Severe malnutrition was observed in 6.98% under five children by weight for age, 8.37% height for age, and 7.92% by weight for height. However 22.32% of the children of under five years of age was found to had mid upper arm circumference (MUAC) below 12.5 cm.

Conclusion: There is need for improvement in the nutritional status of the rural children. There should be some training or any other education concerning about nutritional knowledge, breast-feeding, weaning practices, nutritional value of food and dietary practices that increase the awareness of rural parents to take care of their children.