Liberty X (originally called Liberty) are an English/Irish pop group originally consisting of Michelle Heaton, Tony Lundon, Kevin Simm, Jessica Taylor and Kelli Young. Since 2017, Heaton, Taylor and Young have performed as a girl group trio.

The group was formed by the five finalists of the 2001 ITV talent show Popstars who failed to make it into the winning group Hear'Say. The group released their debut album, Thinking It Over, on 27 May 2002 which featured their biggest single "Just a Little", which gave them international success. They released their second studio album Being Somebody a year later on 3 November 2003, although not matching the success of their debut. Following disappointing sales, the group were dropped and later signed with Virgin, released a final studio album X on 10 October 2005 and disbanded in 2007. Liberty X went on to achieve ten consecutive UK Top 20 singles, and various charting singles worldwide, leading to greater commercial success than Hear'Say. In 2013 the original line up toured until 2014.