Lazy (Polish: Łazy ) is a village in Karviná District, Moravian-Silesian Region, Czech Republic. It was a separate municipality but became administratively a part of Orlová in 1946. It has a population of 274.
The name is cultural in origin and in Polish denotes an arable area obtained by slash-and-burn technique.
The settlement was first mentioned in a Latin document of Diocese of Wrocław called Liber fundationis episcopatus Vratislaviensis from around 1305 as item in Lazy villa Paczconis. It meant that the village was in the process of location (the size of land to pay a tithe from was not yet precise). The village could have been founded by Benedictine monks from an Orlová abbey and also it could a part of a larger settlement campaign taking place in the late 13th century on the territory of what would later be known as Upper Silesia.
Politically the village belonged initially to the Duchy of Teschen, formed in 1290 in the process of feudal fragmentation of Poland and was ruled by a local branch of Silesian Piast dynasty. In 1327 the duchy became a fee of the Kingdom of Bohemia, which after 1526 became part of the Habsburg Monarchy.