David Edward Martin is an English professional footballer who plays as a goalkeeper for National League football club Southend United. He has also played for Wimbledon, Liverpool, Accrington Stanley, Leicester City, Tranmere Rovers, Leeds United, Derby County, Milton Keynes Dons, Millwall and West Ham United and at youth international level for England U16, England U17, England U18 and England U19.

Southend United Football Club is a professional association football club based in Southend-on-Sea, Essex, England, which competes in the National League, the fifth level of English football. The team are known as "The Shrimpers", a reference to the area's maritime industry that is included as one of the quarters on the club badge.