Łazy is a town in Zawiercie County, Silesian Voivodeship, Poland. Until 1947 the town was the seat of the Rokitno Szlacheckie municipality. In the years 1975–1998 the town administratively belonged to the Katowice province. As of 2019, the town has 6,811 inhabitants. During World War II, German occupiers changed the name to Lazy then to Lasern without a legislative decree. Łazy belongs to the province of Lesser Poland, and since its foundation until the Partitions of Poland, it was part of Krakow Voivodeship.