Georgios Vagiannidis

Panathinaikos

Vagiannidis plays mainly as a right-back and joined Panathinaikos from the team's youth ranks. On 16 February 2020, Vagiannidis made his professional debut and scored his first goal, getting an assist as Panathinaikos beat Panetolikos 3–1 at the Olympic Stadium. In May 2020, Italian giants Inter expressed interest in acquiring the talented young player of Panathinaikos. The 18-year-old right-back had recently reached a verbal agreement with Panathinaikos to sign a new contract before talks were halted due to the Coronavirus pandemic.

Inter Milan

On 5 June 2020, Vagiannidis has penned a four-year contract with Inter of Serie A. Inter will not need to negotiate with Panathinaikos to land Vagiannidis and will only have to pay a FIFA determined compensation amount of €400,000. The Greek full-back will reportedly earn around €300,000 per year in Milan.

Loan to Sint-Truiden

On 1 October 2020, Vagiannidis signed with Sint-Truiden on loan. On 3 February 2021, he made his debut with the new club in Belgian Cup against Lokeren-Temse at the Daknamstadion in the season 2020–21.

Return to Panathinaikos

On 3 September 2021, Panathinaikos officially announced the return of Georgios Vagiannidis, who signed on a free transfer, a four-year contract with the club for an undisclosed fee. Towards the end of 2024 talks between him and the club have begun regarding a new contract signed until 2027.

Sporting CP

On 6 August 2025,…

Vagiannidis made his debut for the Greece national team on 7 September 2024 in a Nations League game against Finland at the Karaiskakis Stadium. He substituted Fotis Ioannidis in the 77th minute of Greece's 3–0 victory.

Club

As of match played 15 August 2026

International

As of match played 24 September 2026

Panathinaikos Greek Cup: 2021–22, 2023–24 Individual

Super League Greece Team of the Season: 2024–25