Stephen Mark Darby is an English former professional footballer who played as a right-back. Darby represented England at under-19 level. He began his career playing on the winning side of the Liverpool FA Youth Cup in 2006 and played competitively for Liverpool from 2008 to 2012. Darby then joined the Bradford team that reached the 2013 Football League Cup final, making over 200 appearances for the club and captaining the side for two seasons. Although he afterwards signed a two-year contract with Bolton Wanderers in 2017, Darby retired from his career just over a year later at the age of 29 after being diagnosed with motor neurone disease.