A former right winger, he made 61 appearances for the Greece national football team, and played for several Greek clubs including Panathinaikos and two spells at PAOK.

Born in Kavala, Greece, Georgiadis' family, soon after his birth, left for Stuttgart, Germany, where young Giorgos first learned to play football.

His exposure to European football brought an offer from English Premiership side, Newcastle United, for £420,000 and Georgiadis joined fellow Greek Nikos Dabizas at St James' Park in the 1999 season.

In May 2013, Georgiadis was appointed caretaker manager for PAOK in place of Giorgos Donis[4] successfully steering them to a first-place finish in the Super League playoffs.

On 13 January 2018, he returned to PAOK after being appointed as a scout, working for Ľuboš Micheľ in finding young Greek talents.