John Patrick Joseph Muldoon (born 21 November 1964) is an English former professional footballer who played for Wrexham in the Football League as a midfielder. He supplied the cross for Barry Horne's goal by which Wrexham eliminated FC Porto from the 1984–85 European Cup Winners' Cup. Muldoon also played for IFK Mariehamn, Oswestry Town, Morecambe, Mold Alexandra, Colne Dynamoes, Bangor City, Newtown, Llansantffraid, Llandudno and Gresford Athletic.