Stylianos "Stelios" Giannakopoulos (Greek: St???a??? "St?????" G?a??a??p?????; born 12 July 1974), popularly known as Stelios, is a Greek former footballer and currently a professional Firefighter working for the Hellenic Fire Service.
During his playing career, Giannakopoulos played as an attacking midfielder and was one of the best known Greek footballers internationally, due to his successful spells with Olympiacos and Bolton Wanderers as well as his appearances with the 2004 European championship-winning Greek national team.