The study contains an analysis of governmental authorities' use of gender mainstreaming in the Nordic countries on the basis of 1) a questionnaire among all ministries in the Nordic countries and 2) 11 good practice examples of gender mainstreaming performed by Nordic governmental authorities. The study shows that governmental authorities can achieve results in the form of increased core service quality and equal opportunities for citizens, which has an effect in the form of increased gender equality if they conduct gender mainstreaming in connection with their work.