This study reveals significant gender disparities in the health effects of spousal education among Indonesians aged 45–80. Married Females with 9 years of schooling experience poorer self‐rated and mental health, whereas husbands' health remains unaffected by their spouses' education. Social capital moderates these effects in a gendered manner. For example, cognitive social capital enhances women's health, while structural social capital benefits men. These findings underscore the need for gender‐sensitive policies to address health inequalities stemming from spousal education, offering new insights into the interplay of education, gender, and well‐being in later life.