The Ryazan constituency (No.156) is a Russian legislative constituency in Ryazan Oblast. Until 2007 the constituency covered Ryazan and its surroundings in northwestern part of Ryazan Oblast. However, in 2016 Ryazan Oblast constituencies were gerrymandered with Ryazan constituency now covering only half of Ryazan and gaining large eastern rural portion of eliminated Shilovo constituency. Most of former territory of the Ryazan constituency was redistricted to nearby Skopin constituency.