Grand National Assembly of Turkey

The Grand National Assembly of Türkiye, commonly abbreviated TBMM, is the country's single-chamber national Parliament. Article 87 of the constitution gives it authority to enact, amend and repeal laws, adopt the state budget, declare war and approve the ratification of international treaties. Deputies introduce bills, while the chamber debates and votes under its rules of procedure.

Treaty approval is one of the Assembly's main checks on external commitments. Under Article 90, most international agreements require approval through a law before Türkiye can complete ratification. The executive negotiates and signs agreements, but the Assembly supplies the legislative consent needed for them to bind the country. This makes the chamber central to both domestic lawmaking and the formal adoption of defence, trade and diplomatic agreements. Its Turkish name is Türkiye Büyük Millet Meclisi.