Sejm Constituency no. 31 is a constituency of the Sejm (lower house of Polish parliament) in the Silesian Voivodeship, electing twelve deputies. It covers area of counties: Bieruà Â-LÃÂdziny, Chorzów, Katowice, Mysà Âowice, Piekary à Âlàskie, Ruda à Âlàska, Siemianowice à Âlàskie, à ÂwiÃÂtochà Âowice and Tychy.