Abstract Gender mainstreaming is an EU policy tool encouraging equality between men and women by incorporating gender concerns into the formation of EU law. The EU has intervened in private international family law, an area where concerns over gender equality may be present. Child abduction, which is regulated by the Brussels II Revised Regulation, is an aspect of international family law where issues of gender have been highlighted. Women are predominantly the abductors of their children and may abduct a child to escape a violent relationship. These factors were in evidence in the 1980 Hague Abduction Convention and an effective gender mainstreaming strategy should promote discussion to address these concerns. By examining the proposals for Brussels II Revised, this article will demonstrate that the gendered nature of child abduction was not clearly addressed in the development of the legislation and questions how mainstreaming can be effective as an aspect of the legislative process.