Celebrated in over 40 cities, metropolitan areas, universities and international organisations


  • Are where 1.8 billion people live, work and care for each other. 

  • Generate over 80% of the world's economic output.

  • Are main drivers of culture and innovation

  • Are indispensable to solving the climate crisis.


World Metropolitan Day is the leading global campaign led by Metropolis and UN-Habitat promoting collective action to build more equitable and prosperous metropolises.


Let’s Officialise World Metropolitan Day


Join the campaign


"We need to make use of the metropolitan scale to respond to the growing problems in urban areas and communities."  
— Maimunah Mohd Sharif, UN-Habitat Executive Director


"We need cities designed for and by citizens, cities  that leave no one behind and Montreal is fully committed to taking action in this direction.” 
Valérie Plante, Mayor of Montreal


“Events, such as World Metropolitan Day are essential to face local and metropolitan challenges.”
 —Ricardo Nunes, Mayor of São Paolo


“Urban resilience implies transforming the challenges of our cities into opportunities that guarantee inhabitants’ rights, based on tolerance, solidarity and respect for diversity.” 
—Carolina Cosse, Mayor of Montevideo


"To create more caring and resilient cities, we need a community that connects all levels of government and integrates diverse actors.” 
—Pablo Javkin, Mayor of Rosario


“We promote World Metropolitan Day because, at Metropolis, we are convinced of the importance of governing cities at the metropolitan scale.” —Jordi Vaquer, Metropolis Secretary General

Every 7 October, World Metropolitan Day commemorates the adoption of the Montreal Declaration on Metropolitan Areas by providing a global forum that brings together metropolises from all over the world. Since 2018, Metropolis and UN-Habitat promote a better urban future by advancing World Metropolitan Day in the framework of Urban October.



We invite all levels of governments, private companies, academic institutions, civil society, international organisations, city networks, urban leaders and experts worldwide to join the movement by organising webinars, workshops and activities.

The goal of the #WorldMetropolitanDay is for local, regional and metropolitan governments –and their communities– to promote collective action to create resilience, advance social justice and develop better public services for all our urban spaces.



We invite you to tune in and participate in the discussions, lectures and activities planned for the days leading to the World Metropolitan Day and to join us virtually or physically in our collective efforts to reimagine a better future together by organising:

  • Events: organise a discussion or hold an online panel with guest experts, the possibilities are endless!

  • Local observance: invite local governments of your metropolis to jointly discuss metropolitan issues

  • Workshops: prepare a learning activity to spread awareness and share knowledge

  • Masterclasses: open up a class or talk to disseminate knowledge on metropolitan governance

  • Commitments: approve or enact a plan, policy, programme, regulation or project that contributes to achieving a more resilient and caring metropolitan spaces