This article examines gender mainstreaming in Sweden, which is an interesting case because several favorable conditions make its implementation likely. It addresses two main questions: (1) to what extent has gender mainstreaming been implemented and (2) what are the consequences? The article first discusses the pros and cons of gender mainstreaming as reflected in the international feminist debate. It then briefly describes the favorable conditions of the Swedish case and subsequently maps out the introduction of gender mainstreaming since 1994, focusing on the process and its politics. It concludes with a discussion of the Swedish experience in terms of the promise and pitfalls of gender mainstreaming identified in the feminist debate and the implications of the Swedish case for feminist theorizing on gender mainstreaming.