The hijab has been the subject of public and academic debates that have polarized scholars, politicians, and activists. Opinions on veiling range widely: while some view veiling as an oppressive practice, others regard veiling as an expression of women's agency and empowerment. Solidarity practices, such as movements against compulsory veiling or actions encouraging non-Muslim women to temporarily wear the hijab, are some of the ways in which activists have tried to show solidarity with Muslim women. In this qualitative study, data from the content analysis of the online platforms of two media campaigns, together with in-depth interviews with Iranian women living in Belgium, were triangulated. Women's perceptions of two solidarity campaigns were explored: the anti–compulsory veiling movement My Stealthy Freedom and the pro-acceptance World Hijab Day campaign. The findings raise questions about the effectiveness of transnational feminist campaigning in solidarity with Muslim women and, more generally, how the notion of solidarity is conceptualized in feminist scholarship.