<p>Despite SDG 9’s target of universal internet access, many women, particularly in rural India, remain offline. While digital infrastructure has expanded rapidly, sharp rural–urban disparities in women’s internet use persist, with limited research on their scale and drivers. This study addresses that gap by analysing the determinants of rural–urban differences in women’s internet use in India. We used nationally representative data from the fifth round of the National Family Health Survey (2019–21). The analysis included 1,03,119 women aged 15–49 (25,483 urban; 77,636 rural). Logistic regression identified predictors of internet use, while Fairlie decomposition quantified contributions to the rural–urban gap. Overall, 33% of women in India use the internet, with higher prevalence in urban (51.7%) than rural (24.8%) areas. Goa has the highest rural prevalence and West Bengal the lowest; in urban areas, Sikkim leads and Andhra Pradesh lags. The rural–urban gap is widest in Mizoram, Jharkhand, and Himachal Pradesh, but narrowest in Goa, Kerala, and Manipur. Education and household wealth are strong predictors of women’s internet use, with educated women and those from wealthier households more likely to be online. Decomposition analysis shows that wealth (67.4%), education (25.8%), and social group (4.5%) are the major contributors to the rural–urban gap. A pronounced rural–urban digital divide persists among Indian women, driven mainly by wealth, education, and social group. Addressing this gap requires policies that strengthen rural digital infrastructure and economic opportunities, alongside education and digital literacy initiatives. Targeted measures for disadvantaged social groups will further promote equitable and inclusive internet use.</p>