The Polish people, or Poles (Polish: Polacy [pɔˈlat͡sɨ]; singular: Polak), are a nation indigenous to Poland. They speak the Polish language, which belongs to the historical Lechitic subgroup of West Slavic languages of Central Europe. The Polish word for a Polish person is "Polak" (masculine) and "Polka" (feminine).
The preamble to the Constitution of the Republic of Poland defines the Polish nation as comprising all the citizens of Poland. Poland's inhabitants live in the following historic regions of the country: Wielkopolska, Małopolska, Mazovia, Pomerania, Warmia, Mazury, Podlasie, Kujawy and Silesia. A wide-ranging Polish diaspora exists throughout Europe (Germany, France, the United Kingdom, Belarus, Lithuania and Ukraine), the Americas (the United States, Brazil and Argentina) and Australia. Chicago, in the United States, has the world's largest urban Polish population after Warsaw.
Over a thousand years ago, the Polans of Giecz, Gniezno and Poznań — an influential tribe in Wielkopolska — succeeded in uniting Lechitic tribes under what became the Piast dynasty, thus giving rise to the Polish state.