Background: Poverty is estimated to increase a mother's chances of giving birth to a low birth weight baby (LBW). Objective: This study aimed to analyze the socioeconomic disparities of LBW in rural Indonesia.Methods: Mother aged 15-49 years old who had given birth in the last 5 years in rural Indonesia was used as the unit of analysis. With stratification and multistage random sampling found 19,283 mothers were sampled. The variables analyzed included LBW, socioeconomic, age, marital, education, employment, and antenatal care (ANC). The binary logistic regression test was used at the final stage to determine the existence of disparities.Results: The results show that the mother with the poorer wealth status was 0.686 times more likely than the poorest mother to give birth to an LBW baby. Mothers with middle wealth status were 0.688 times more likely than the poorest mothers to give birth to LBW babies. Mothers with richer wealth status were 0.621 times more likely than the poorest mothers to give birth to LBW babies. Finally, the richest mothers were 0.452 times more likely than the poorest mothers to give birth to LBW babies. The results of this analysis inform that the better the socioeconomic of mothers, the lower the likelihood of giving birth to LBW babies. Apart from socioeconomics, the analysis also found two other predictors of LBW in rural Indonesia, namely education level and ANC visits.Conclusion: It was concluded that there were socioeconomic disparities of LBW in rural Indonesia.