Milanówek [mʲilaˈnuvɛk] is a town and urban commune in central Poland, in the Grodzisk Mazowiecki County in the Masovian Voivodeship.

Located near Warsaw, it is often considered an outlying suburb of the capital of Poland but is in fact an independent entity administratively and culturally.

Milanówek was established in the late 19th and early 20th century as a result of parceling land belonging to Michał Lasocki, and lying along the Warsaw-Vienna Railway.

[2] During the Warsaw Uprising vital organs of Polish Underground State moved to Milanówek and gave the town the nickname "Little London".

388 pre-war villas and other valuable buildings in the middle of Milanowek have been included in the national register of historic monuments.