The Little Steel Derby Girls (LSDG) is a roller derby league based in Youngstown, Ohio. Founded in 2008, the league currently consists of two teams which compete against teams from other leagues.
The league was founded in December 2008 by Tifany Griffith, known as "Ground Zero". It won its first bout, against a Steel City Derby Demons team, but progress was initially slow, and it was only in October 2010 that it was ready to play its first home bout. By early 2011, the league had 24 skaters, and was aiming to join the Women's Flat Track Derby Association (WFTDA).