Background: The aim was to investigate: (a) whether there is an association between the maternal double burden of overweight and short stature and the risk of cesarean delivery and (b) whether socioeconomic status (SES) acts as a moderator in the association between the maternal double burden of overweight and short stature and the risk of cesarean birth (CB). Materials and methods: The data for this study were obtained from the nationally representative Demographic and Health Survey databases of five South Asian countries. The analyses were based on responses from married women between 15 and 49 years of age. The risk of CB was the primary outcome, while the maternal double burden of overweight and short stature (coexistence of overweight and short stature) was the exposure of interest. Results: Maternal double burden of overweight and short stature was significantly associated with 179% higher likelihood of undergoing CB in South Asia (SA), with 304%, 200%, 167%, 155%, and 125% higher likelihood of undergoing CB in Nepal, Pakistan, India, Maldives, and Bangladesh, respectively. Findings also demonstrated that mothers belonging to low SES groups with a double overweight and short stature burden were not uniquely disadvantaged. Conclusions: A significant marker in SA of higher risk of CB is the maternal double burden of overweight and short stature. The negative effect of the maternal double burden of overweight and short stature extends across all economic backgrounds in relation to the risk of CB. It is not limited to poor mothers who suffer from the double burden of overweight and short stature.