| Stefanos Siontis | |
| Height: | 1.8m (05.9feet)[1] |
| Birth Date: | 4 September 1987 |
| Birth Place: | Ioannina, Greece |
| Position: | Defensive midfielder |
| Years1: | 2005–2009 |
| Clubs1: | Panathinaikos |
| Caps1: | 4 |
| Goals1: | 0 |
| Years2: | 2006–2007 |
| Clubs2: | → Ethnikos Asteras (loan) |
| Caps2: | 3 |
| Goals2: | 0 |
| Years5: | 2009–2011 |
| Clubs5: | Kavala |
| Caps5: | 27 |
| Goals5: | 1 |
| Years6: | 2011–2012 |
| Clubs6: | Panetolikos |
| Caps6: | 22 |
| Goals6: | 0 |
| Years7: | 2012–2013 |
| Clubs7: | Doxa Katokopias |
| Caps7: | 28 |
| Goals7: | 1 |
| Years8: | 2013–2014 |
| Clubs8: | Veria |
| Caps8: | 18 |
| Goals8: | 0 |
| Years9: | 2014 |
| Clubs9: | Doxa Katokopias |
| Caps9: | 15 |
| Goals9: | 0 |
| Years10: | 2014–2015 |
| Clubs10: | Kerkyra |
| Caps10: | 16 |
| Goals10: | 0 |
| Years11: | 2015–2016 |
| Clubs11: | Veria |
| Caps11: | 21 |
| Goals11: | 0 |
| Years12: | 2016–2018 |
| Clubs12: | Kerkyra |
| Caps12: | 53 |
| Goals12: | 1 |
| Years13: | 2018–2022 |
| Clubs13: | PAS Giannina |
| Caps13: | 53 |
| Goals13: | 0 |
| Years14: | 2022–2023 |
| Clubs14: | Panserraikos |
| Caps14: | 12 |
| Goals14: | 0 |
| Nationalyears1: | 2004–2007 |
| Nationalteam1: | Greece U19 |
| Nationalcaps1: | 5 |
| Nationalgoals1: | 0 |
| Pcupdate: | 16 June 2023 |
Stefanos Siontis (el|Στέφανος Σιόντης; born 4 September 1987) is a Greek former professional footballer who played as a defensive midfielder.
He was also part of Greece Under 21 team.
On 1 July 2009 Kavala announced the transfer of Siontis for an undisclosed fee.[2] On 27 July 2011, he signed a 1-year contract with Panetolikos.[3]
On 23 August 2013 Veria announced the transfer of Siontis on a free transfer. His contract is due to expire on 30 June 2014.[4]
After Kerkyra's relegation Siontis was released on a free transfer. On 26 August 2015, Siontis returned to Veria as he signed a one-year contract.[5] Siontis debuted on 29 August 2015 for Veria in an away match against Panthrakikos, he played the entire match. On 13 May 2018, PAS Giannina officially announced the signing of experienced defensive midfielder Stefanos Siontis on a two years' contract, who was released from Kerkyra The 31-year-old player scored one goal at 25 Superleague performances with manager Giannis Matzourakis' team during 2017–18 season.[6]
On 13 May 2018 Siontis signed for 2 years with PAS Giannina.[7]