|Full name||Athanasios Petsos|
|Date of birth||5 June 1991|
|Place of birth||Düsseldorf, Germany|
|Height||1.84 m (6 ft 0 in)|
|Playing position||Defensive midfielder|
|1999–2001||Düsseldorf 99 SC|
|2010||Bayer Leverkusen II||8||(0)|
|2010–2012||→ 1. FC Kaiserslautern (loan)||39||(0)|
* Senior club appearances and goals counted for the domestic league only and correct as of 29 November 2015.
Athanasios "Thanos" Petsos (Greek: Αθανάσιος Πέτσος, born 5 June 1991) is a German-Greek footballer who plays as a defensive midfielder for Rapid Wien and the Greek national team. Thanos Petsos is both an elegant, and technically strong player and on the other hand a real fighter. The Düsseldorf-born feels more secured in the field on the position of the central defensive midfielder, but in Germany he played sometimes even as a right-back or even a centre-back. The most striking feature in Petsos' game is its excellent shooting technique.
Petsos started his football career at the age of eight for Düsseldorf 99 SC. In 2001 he was lured away to professional club Bayer Leverkusen. He progressed through the youth system and was part of the team that finished runner-up in the Under-19 Bundesliga in 2010. He made his debut for the reserve team in March 2010. He made seven more appearances in the 2009–10 season while continuing to play for the under-19 team. He made his Bundesliga debut on 24 April 2010 against Hannover 96. When Petsos was in the first team of the "Werkself" debuted in April 2010, players like Toni Kroos and Arturo Vidal stood in the square.
In 2010, Petsos signed his first professional contract agreeing to a four-year deal and was immediately loaned out to 1. FC Kaiserslautern for two seasons. He made his full Bundesliga debut for the club on 13 November 2010 against VfB Stuttgart. He made a total of 42 appearances for the club.
In 2012, Petsos signed for newly promoted SpVgg Greuther Fürth on a three-year deal. He made his debut for the club on 18 August 2012 in a DFB-Pokal match against Kickers Offenbach, he then went on to make his Bundesliga debut on 31 August 2012 against Mainz 05. He went on to make a total of 15 appearances for the club.
On 15 July 2013, Petsos joined Austrian club Rapid Wien on a three-year deal,for nearly a €250,000 transfer fee.  He made his debut for the club on 27 July 2013 against Wiener Neustadt. In April 2015, the 23-year-old Greek midfielder has been linked with Olympiakos in the past and according to reports the Greek giants have revived their interest in his services. Petsos, whose contract at the Austrian club expires in 2016, has become a regular member of Rapid Wien for yet another season and Olympiakos could consider a move for him in the next transfer window. 
On 3 May 2015, in a away game against SK Sturm Graz made the 2-1 to a final 2-2 draw with a long-range thunderbolt that the opposite keeper could only get his fingers behind.  In the third qualifying round of UEFA Champions League against AFC Ajax, Petsos impressive reading of the victorious 2-3 away game along with his dominant overall playing, forced Ajax's players into more and more turnovers. The final whistle went and confirmed the a quality display from Rapid Wien had earned them not only a victory overall in the tie, but a famous win on the night in Amsterdam.  On 18 October 2015, he returned to the team starting in a Austrian championship game against Wolfsberger AC, but was unlucky as he wounded in the first quarter of the match.  On 22 October 2015 in a UEFA Europa League 3-2 home game against Plzeň, Petsos right footed shot from long range on the left to the bottom right corner after the assist by Stefan Stangl, gave a lead of two goals to his club. 
On 5 August 2011, Petsos was called up to the senior team for the first time by manager Fernando Santos for the friendly match against Bosnia and Herzegovina, and three days later he made his international debut. After almost four years, on 3 September 2015, Petsos was called up from manager Kostas Tsanas for the Euro 2016 qualifier matches against Romania and Finland, but was wounded in last night's training session of the national team and will eventually lose both games. The player of SK Rapid Wien was injured shortly before completion the program and went immediately to the hospital for examination, where it was found to have suffered a partial rupture of the medial collateral ligament. He will be out of action for one month, according to the national’s medical team.
- "Thanos Petsos". www.skrapid.at.
- "Στην Γκρόιτερ Φιρτ ο Πέτσος". xrimaonline.gr. 23 May 2012.
- . Rapid sign Petsos Retrieved 15 July 2013.
- Rapid lässt Wiener Neustadt keine Chance. sportnet.at. Retrieved 14 August 2013.
- "Petsos linked with Olympiakos". 5 April 2015.
- . bleacherreport.com. Retrieved 3 May 2015.
- "Τρομερό γκολ ο Πέτσος (vid)". 3 May 2015.
- "Ajax 2:3 Rapid: clinical Hütteldorfers sparkle in Amsterdam". 5 August 2015.
- ""Χρυσοί" σκόρερς οι Ταχτσίδης και Παπάζογλου". 18 October 2015.
- "Rapid Rapid Wien - Plzeň 3-2". 22 October 2015.
- Τραυματίστηκε ο Πέτσος και χάνει Φινλανδία και ΡουμανίαRetrieved 3 September 2015
- Athanasios Petsos at National-Football-Teams.com
- Thanos Petsos at fussballdaten.de (German)
- Thanos Petsos – UEFA competition record
- ESPN FC profile