Every five years, the IPU, in close cooperation with the United Nations, convenes a World Conference of Speakers of Parliament. This World Conference aims to advance strong and effective multilateralism, with the UN at its core and where parliaments and MPs are called upon to play a key role: promoting accountability and democracy in international relations, carrying out parliamentary diplomacy in the service of peace and understanding, bringing the people’s voice to the UN, and helping to translate international commitments into national realities.

In 2025, the Sixth World Conference of Speakers of Parliament was held in the Palais des Nations, the UN Office at Geneva, from 29 to 31 July, preceded on 28 July 2025 by the 15th Summit of Women Speakers of Parliament.