Stephen Alan Harper (born 14 March 1975) is an English former professional footballer, and currently first team coach for Newcastle United and goalkeeping coach for the Northern Ireland national team. He is best known for his time playing at Newcastle, having amassed 157 league appearances over a twenty-year period between 1993 and 2013. Although he was not always the first choice goalkeeper at Newcastle, he was the longest-serving player in the club's history.