The IPU facilitates parliamentary diplomacy and empowers parliaments and parliamentarians to promote peace, democracy and sustainable development around the world.
We help parliaments build peaceful and inclusive societies, fight terrorism and violent extremism and curb the proliferation of weapons of mass destruction.
Nearly every country in the world has some form of parliament. Parliamentary systems fall into two categories: bicameral and unicameral. Out of 188 national parliaments in the world, 81 are bicameral (162 chambers) and 107 are unicameral, making a total of 269 chambers of parliament with some 44,000 members of parliament. IPU membership is made up of 183 national parliaments
Throughout the year, the IPU and its Members organize many events for parliamentarians to exchange good practices, acquire the latest information and identify avenues for action.
The IPU has been collecting data on parliaments since its inception in 1889, including information on women’s participation in politics since 1945. In this section, discover the IPU's knowledge bank for and about parliaments.
Interfaith dialogue is increasingly recognized as a valuable tool for peacebuilding and diplomacy. It acknowledges the central role of religion and belief in many people's lives, and the influence of religious leaders and institutions in shaping communities and providing spiritual and material support.
In an era of growing intolerance and polarization, interfaith dialogue can help parliamentarians promote peaceful, inclusive societies and uphold human rights.
In 2022, we launched an initiative to explore the intersection of political institutions with religions and beliefs, aligned with our 2022-2026 Strategy to encourage parliaments to engage with their broader social and cultural context.
Why interfaith dialogue matters
Global relevance: Over 80% of people worldwide identify with a religion or belief. Religious actors often play key roles in community support and social services.
Human rights: Freedom of religion or belief is a fundamental human right under international law.
Societal impact: Religion and belief shape values, civic engagement and voting behaviour.
Peace and conflict: Many conflicts have a religious dimension, and religious actors can also be powerful advocates for peace. A faith-sensitive approach should be part of parliamentary diplomacy and peacebuilding.
Parliamentary reports: A unique resource showcasing how parliaments and MPs engage with religion and belief in their life and work.
Capacity building: webinars, podcasts and articles offer MPs opportunities to learn and exchange experiences on countering intolerance, upholding human rights and promoting peaceful coexistence.
Parliamentary diplomacy: We foster dialogue between parliaments on the religious dimensions of conflict and the role of religious engagement in fostering peace.
Multistakeholder dialogue: Changing the Narrative: Preparing for Peace is a White Paper exploring how multifaith and multistakeholder engagement can help address rising conflict and polarization. Developed through a partnership between Globethics, Wilton Park, the IPU, and the United Nations Faith for Rights Initiative, the White Paper distils the outcomes and recommendations of four international meetings convened in 2025.