Abstract: Stunting adversely affects the physical and cognitive outcome of school-aged children. However, very limited information available on risk factors of stunting among Indonesian school-aged children (ISC). This study was aimed to analyze risk factors of stunting among ISC. This study used electronic files data of Basic Health Research 2010 of the Health Research and Development Agency of the Ministry of Health, which was designed as cross-sectional survey. A total of 8710 children aged 6-12 years from eight provinces in Indonesia were selected for the analysis. Stunting and severe stunting were defined as height-for-age z-score (HAZ) of <-2 Standard Deviation (SD) and <-3 SD of the WHO reference, respectively. A logistic regression was used to analyze risk factors of stunting. The result showed that 28.11% of ISC were stunting and of the stunted children, 11.38% were severely stunting. In multivariate logistic regression analyses adjusted for all factors, stunting was associated with low household expenditure, low Healthy Eating Index score, low maternal height, low maternal education, higher family member, low energy and protein adequacy level, older age, living in rural area, male sex, low sanitation score and higher phosphor and vitamin C adequacy level.