Numerous studies have documented religious variations in gender ideology in the United States. Despite growth, diversification, and religious ferment among Latinas/os, few have investigated this topic within the Latina/o population. Drawing on insights from gender theory and prior empirical research, we develop several hypotheses regarding the links between religious affiliation, belief, and practice and three distinct domains of traditionalist gender ideology (respective beliefs in female domesticity, gender essentialism, and patriarchy) among U.S. Latinas/os. These hypotheses are tested using data from the Hispanic oversample of the National Survey of Religion and Family Life (NSRFL), a nationwide probability sample of working-age adults (ages 18-59). The results underscore the complex associations between multiple dimensions of religious involvement and specific facets of gender ideology among Latinas/os. Several promising directions for future research on this understudied population are outlined, and study limitations are identified.