The purpose of this study was to explore if there are differences between women and men in relationships among family-of-origin, romantic attachment, and marital adjustment. Two hundred and forty-nine participants filled out four self-reported measures: The Differentiation in the Family System Scale, Family Adaptability and Cohesion Evaluation Scale, Experiences in Close Relationship Scale, and Revised Dyadic Adjustment Scale. In order to analyze the data, multiple-group analysis with AMOS 16.0 was used. There was no difference between women and men in all observed variables. Regardless of gender, only the romantic attachment was a significant predictor of marital adjustment. Only in women, family-of-origin significantly predicted their romantic attachment. Across gender groups, the configural model fitted satisfactorily the observed data. When measurement and structural weights, as well as residuals were constrained to be equal across gender groups, the invariance of the model was also supported. The results suggest women and men could be similar when it comes to the relationships among constructions they both have regarding family-of-origin experiences, romantic attachment patterns, and marital adjustment. Some implications for research and clinical practice with marital couples are briefly discussed.