Lyudmyla Leonydivna Blonska (Ukrainian: Людмила Леонідівна Блонська, Lyudmyla Leonydivna Blonskaya), née Shevchuk (born November 9, 1977 inSimferopol) is a former Ukrainian heptathlete, long jumper and 2006 World Indoor champion pentathlete. She was given a lifetime ban from competition after failing a drug test at the 2008 Summer Olympics, her second doping offense.