The Lower Silesian Voivodeship Sejmik () is the regional legislature of the Voivodeship of Lower Silesia in Poland. It is a unicameral legislature consisting of thirty-six councillors chosen during local elections with a five-year term. The current chairperson of the assembly is Jerzy Pokój.
The assembly elects the executive board that acts as the collective executive for the regional government, headed by the province's marshal. The current Executive Board of Lower Silesia is a coalition government between Civic Coalition, Polish People's Party and the Independents. The current marshal is Paweà  Gancarz.
The assembly convenes within the Voivodeship Office building in central Wrocà Âaw.
Members of the Assembly are elected from five districts, serving five-year terms. Districts does not have the constituencies' formal names. Instead, each constituency has a number and territorial description.