Joshua Walker (born 21 February 1989) is an English footballer who plays as a defender or midfielder for Dunbar United. Walker started his career at Middlesbrough, progressing through the club's youth academy and was part of the club's FA Youth Cup winning team in 2004. He subsequently made his first-team debut for Middlesbrough in 2006, and made a handful of appearances during his four-year professional tenure at the club. During his time at Middlesbrough, Walker was loaned out on four occasions, playing for Football League clubs in the form of AFC Bournemouth, Northampton Town, and Rotherham United respectively, as well as Scottish Premier League club Aberdeen.