Tessa Cerisier is the former Senior Human Rights Advisor of the Women’s International League for Peace and Freedom (WILPF) and currently works as an independent expert. She provides analysis, research, and advocacy across a range of human rights issues, including on disarmament and arms control, with a feminist and antimilitarist perspective.

From 2018 to 2026, Cerisier led policy analysis and advocacy at WILPF, in close collaboration with Reaching Critical Will (WILPF’s Disarmament Programme), on the accountability of States regarding arms transfers practices and that of the arms industry under international human rights law, conducting successful advocacy with UN human rights mechanisms. Cerisier is passionate about strengthening strategic advocacy and litigation efforts seeking accountability for human rights violations and other violations of international law, committed by corporations and States involved in the arms trade and in armed conflict.

Prior to WILPF, she also worked on a research project on corporate human rights abuses in Myanmar with the International Corporate Accountability Roundtable. In addition to human rights expertise, she brings legal, policy and stakeholder analysis skills from her experience working in the private sector as a legal counsel in European regulatory affairs.

Cerisier holds a Master’s degree in human rights from Université Saint-Louis (Brussels, Belgium), a Master’s in business law from Université Jean Moulin Lyon III (Lyon, France), and a Master’s in international management from EM Lyon Business School (Lyon, France). She is fluent in English and French, and speaks intermediate Spanish.