Calls to restrict women’s rights are a most effective rallying cry for right-wing populists and religious conservatives in their surprisingly successful attack on the foundations of liberal democracy. Populist leaders across the world use the aggrandizement of patriarchy and the opposition to women’s rights as the engine of a right-wing populist revolution. The success of the populist attack on women’s rights in liberal societies, together with decisions such as the American Dobbs decision, has confirmed feminist warnings regarding the flawed protection of women’s rights in liberal societies, which have hitherto been rejected by most liberals as unfounded and alarmist. The book claims that to understand the success of the religio-populist attack on women’s rights in liberal democracies, and its centrality to the success of right-wing populism, it is necessary to acknowledge and understand the patriarchal nature of liberalism and liberal societies. The introduction defines patriarchy and explains its connections to liberalism, religion, and populism, and the contemporary threat it poses to both women’s rights and liberal democracy. It then sets out the outline of the book.