


Major metropolitan areas contributing at least 2.5‰ of world GDP. Click on the headers to reorganize columns. The methodology of calculating GDP may differ between the studies and are widely based on projections and sometimes approximate estimations, notably for cities that are not within the Organisation for Economic Co-operation and Development. 15 New York City, London, Tokyo, and Paris are notably the most prominent metropolises mentioned in this respect. Cities may be defined as the cities proper, the extent of their urban area, or their metropolitan regions. Rankings Global city rankings are numerous, with one study suggesting as many as 300 global cities worldwide.

The United Nations uses three definitions for what constitutes a city, as not all cities may be classified using the same criteria. This is a list of cities in the world by gross domestic product ( GDP). GDP of the ten largest metropolitan economies in the OECD, 2001–2018
