Objective of the study: To assess the prevalence of stunting, vitamin D, zinc and iodine deficiency among primary school students in Ho Chi Minh city (HCMC) Viet Nam. Methodology: a cross sectional study on 350 primary school students in one school in urban district and one school in rural district of HCMC. Students were measured body weight, height by using standard method, taken blood samples for measuring serum vitamin D and zinc concentration, taken urine samples for measuring urinary iodine level. Serum vitamin D, zinc concentration, and urinary iodine were analyzed by Medical lab Diag Center HCMC, Center of Analytical Services, and laboratory of HCMC Nutrition Center, respectively. Results: Mean height of primary school students is 4-8 cm lower than WHO standard. Prevalence of mild to severe stunting (height for age from -1 SD to 3SD) is 28.7 percent. The prevalence of overweight is very high at 46.2 percent. Low serum vitamin D (30ng/ml), low serum zinc (70mcg/dl) and low urinary iodine (10 mcg/dl) are 37.5 percent,22.3 percent and 51.0 percent respectively. Conclusions: Height and micronutrient deficiencies are alarming problems among primary school students in HCMC.