Klucz (Polish for "key") may refer to: Klucz, Szczecin, a municipal neighborhood of the city of Szczecin, Pomerania Klucz, Lubusz Voivodeship, Gmina Wschowa, Lubusz Voivodeship, Neumark Klucz, Opole Voivodeship, Gmina Ujazd, Strzelce County, Opole Voivodeship, Silesia Klucz (Jaworzno), a district of Jaworzno