The Metropolitan Manila Development Authority (MMDA; Filipino: Pangasiwaan sa Pagpapaunlad ng Kalakhang Maynila) is a government agency of the Philippines responsible for constituting the regional government of Metro Manila, comprising the capital city of Manila, the cities of Quezon City, Caloocan, Pasay, Mandaluyong, Makati, Pasig, Marikina, Muntinlupa, Las Piñas, Parañaque, Valenzuela, Malabon, Taguig, Navotas and San Juan, and the municipality of Pateros.
The MMDA is under the direct supervision of the Office of the President of the Philippines. It performs planning, monitoring and coordinative functions, and in the process exercises regulatory and supervisory authority over the delivery of metro-wide services within Metro Manila without diminution of the autonomy of the local government units concerning purely local matters.