Every 7 October, World Metropolitan Day commemorates the adoption of the Montreal Declaration on Metropolitan Areas.
Join the campaign
Since 2018, Metropolis and UN-Habitat promote a better urban future by bringing together mayors and metropolitan leaders all over the globe to share groundbreaking solutions to the challenges of our communities and the planet.
This campaign seeks to designate World Metropolitan Day as an International Day adopted by the UN General Assembly.
Officialising World Metropolitan Day would allow cities, metropolitan areas and regions all over the world to raise ambitions in creating more integrated communities and, ultimately, improve people’s well-being and respond to the climate emergency.
Key benefits of joining the campaign
Metropolitan issues at the forefront of policy-making
Almost 2.6 billion people stand to benefit from this shift in the way we plan, design and manage our metropolises.
A lever to sparkle innovation
A focus on building partnerships to lead action, ensure equity and build capacity building beyond municipal boundaries.
Global leadership and visibility
A unique opportunity to join and shape a global movement capable of changing the world.
60%
of people live
in urban areas
3.5 billion
metropolitan inhabitants
in 2035
47 cities
have signed
Metropolis’ petition
Mayors and metropolitan leaders call upon the UN General Assembly to proclaim World Metropolitan Day an official international day
Ada Colau Ballano
Mayor
Barcelona
Dario Nardella
Mayor
Florence
Claudia López
Mayor
Bogotá
Barthélémy Dias
Mayor
Dakar
Valerie Plante
Mayor
Montreal
President
Greater Montreal
Mpho Phalatse
Mayor
Johannesburg
Pascal Smet
Secretary of State
Brussels-Capital Region
Carolina Cosse
Mayor
Montevideo
Nicușor Dan
Mayor
Bucharest
Asmaa Rhlalou
Mayor
Rabat
Franziska Giffey
Mayor
Berlin
Oh Se-hoon
Mayor
Seoul
Mario Durán Gavidia
Mayor
San Salvador and COAMSS Coordinator
Marie Barbey-Chappuis
Mayor
Geneva
Eduardo Vítor Rodrigues
President
Metropolitan Area of Porto
Ossi Savolainen
Regional Mayor
Helsinki-Uusimaa Region
Marta Suplicy
Municipal Commissioner of International Affairs
São Paulo
Pablo Javkin
Mayor
Rosario
Chingyu Yao
Director General
New Taipei City Government
Fuad Noman
Mayor
Belo Horizonte
Diana Alarcón González
Chief Advisor
Mexico City
Arthur van Dijk
Commissioner in the province of Noord-Holland and Vice-President
Metropolitan Region Amsterdam
Andy Burnham
Mayor
Greater Manchester
Ernest Maragall
Vice-President
Barcelona Metropolitan Area
Renato Ogawa
Mayor
Barcarena
Jhonnatan Gamboa
Advisor and Executive Direction ACI
Medellín
Pablo Marcelo Maturana Guzmán
Subdirector of Cooperation
Metropolitan Area of Valle de Aburrá
Mohammadhassan Asadi
Mayor
Shiraz
Muhittin Böcek
Mayor
Antalya Metropolitan Municipality
Vahap Seçer
Mayor
Mersin Metropolitan Municipality
Saeed Abrishami Rad
Mayor
Shahin Shahr
Seyed Masoud Hosseini
Mayor
Hamedan
Alireza Zakani
Mayor
Tehran
Jerzy Muzyk
Deputy Mayor of the City of Krakow
Vice President of the Krakow Metropolis
Ammar Musa Kadhim
Mayor
Baghdad
Sayyed Abdollah Arjaei Shirazi
Mayor
Mashhad
Yaghoub Houshyar
Mayor
Tabriz Metropolitan Municipality
Patricia Martínez Barba
Director of the Metropolitan Area of Guadalajara (IMEPLAN)
IMEPLAN
Javad Hamidi
Mayor of
Bojnord
Horacio Rodríguez Larreta
Mayor of
Buenos Aires
Caroline Conroy
Mayor of
Dublin
Uğur İbrahim Altay
Mayor of
Konya Metropolitan Municipality
Ricardo Rio
President
Cávado Intermunicipal Community and Mayor of Braga
Marco Bucci
Mayor
Metropolitan City of Genova
Ritva Viljanen
Mayor
Vantaa
Jakub Mazur
First Deputy Mayor
Wrocław
Carla Maria Nunes Tavares
President
Metropolitan Council of Lisbon
World Metropolitan Day Partners
Organisational endorsements
