The City Is Ours (Polish: Miasto Jest Nasze, MJN) is an independent citizen platform launched in 2013 in Warsaw, as of 2014 registered as a non-profit civic association.

As part of its activity, it monitors the work of politicians and city officials by publicizing irregularities in Warsaw's management and pressing on the importance of accountability.

[16] Miasto Jest Nasze activity has been focusing on identifying and addressing critical issues, inter alia including the following: Over the past years the activity of Miasto Jest Nasze has also been commented on in various foreign non-English press articles (including Frankfurter Rundschau,[25] Mitteldeutscher Rundfunk,[26] Le Monde,[27] as well as Czech[28][29] or Slovak[30][31] media).

The site allowed to generate a fast and user-friendly registration application, an innovative solution aiming at promoting the participation of the wide group of foreigners living in the capital.

The party organized blockades to prevent evictions as well as destruction of districts that house low-income tenants or which are important for local culture.

[5] It advocate the development of green cities and serves as a watchdog for environmental causes, campaigning on the need to curb air pollution and smog in Warsaw.

[48] It is particularly well-known for publishing the "Map of Reprivatisation", which exposes connection between politician and real estate companies involved in corruption and reprivatization programs.