The concept of equality has been a key animating principle of modern feminism, and has been highly productive for feminist legal thought and feminist politics concerning law. Today however, given the failure to achieve material and psychic equality for women, feminists have come to challenge the usefulness of equality as a concept, a particular definition, or a basis for strategising. The papers in this collection reflect these concerns, primarily in the context of English-speaking, common law cultures. Collectively, the papers analyse a range of equality projects across a number of areas of public and private law, considering both competing conceptions of equality and alternatives to it. In taking stock across a century and a half and around the globe, the book illustrates the range of ways in which equality projects in law have been challenged by, and remain a challenge for, feminism.