|Full name||Georgios Ioannidis|
|Date of birth||4 May 1988|
|Place of birth||Serres, Greece|
|Height||1.73 m (5 ft 8 in)|
|Playing position||Left-back, Midfielder|
|* Senior club appearances and goals counted for the domestic league only and correct as of 22:16, 20 March 2017 (UTC).
‡ National team caps and goals correct as of 08:07, 13 April 2012 (UTC)
On 22 July 2010, Ioannidis moved to Panathinaikos on a free transfer, signing a three-year contract. At Panathinaikos, he met his former Greece under-19 head coach Nikos Nioplias, who was the head coach of Tryfilli at the time.
On the final days of July 2012, Ioannidis said at an interview that many teams have shown interest for him, and that the interest of AEK Athens is an honour for him. He also said that he wants to go at a club that he would play regularly.
- "Ο Παναθηναϊκός αποκτάει Φερνάντες και Ιωαννίδη (Panathinaikos signing Fernandes and Ioannidis)" (in Greek). Eleftherotypia. 21 July 2010.
- ""Πρασίνισε" για τρία χρόνια ο Ιωαννίδης (Ioannidis a "green" for three years)" (in Greek). in.gr. 22 July 2010.
- Vogiatzakis, Manolis (30 July 2012). "Ιωαννίδης: "Έχω πρόταση απ' την ΑΕΚ" (Ioannidis: "I've got an offer from AEK")" (in Greek). Nova Sports. Retrieved 31 July 2012.
- Haslam, Andrew (27 July 2007). "Parejo the hero as Spain reign again". uefa.com. Archived from the original on 15 October 2007.
- "Georgios Ioannidis profile". Guardian.co.uk. Archived from the original on 11 October 2012. Retrieved 13 April 2012.
- "Giorgos Ioannidis profile". Soccerway. Retrieved 13 April 2012.