Stefanos Siontis (Greek: Στέφανος Σιόντης; born 4 September 1987) is a Greek former professional footballer who played as a defensive midfielder.
On 1 July 2009 Kavala announced the transfer of Siontis for an undisclosed fee.
[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.
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.