| Stathis Papadionysiou | |
| Position: | Shooting guard / small forward |
| Height Ft: | 6 |
| Height In: | 5.75 |
| Weight Lbs: | 210 |
| Nationality: | Greek |
| Birth Date: | 15 September 1992 |
| Birth Place: | Marousi, Athens, Greece |
| Draft Year: | 2014 |
| Career Start: | 2013 |
| Years1: | 2013–2015 |
| Team1: | AEK Athens |
| Years2: | 2015–2016 |
| Team2: | Pagrati |
| Years3: | 2016–2017 |
| Team3: | Aiolos Astakou |
| Years4: | 2017–2018 |
| Team4: | Iraklis |
| Years5: | 2018–2020 |
| Team5: | Charilaos Trikoupis |
| Years6: | 2020–2021 |
| Team6: | Olympiacos B |
| Years7: | 2021–2022 |
| Team7: | Charilaos Trikoupis |
| Years8: | 2022–2024 |
| Team8: | Panionios |
| Highlights: |
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Efstathios Papadionysiou, commonly known as Stathis Papadionysiou (Greek, Modern (1453-);: Ευστάθιος "Στάθης" Παπαδιονυσίου; born September 15, 1992) is a Greek professional basketball player. At a height of 1.97 m (6'5 ") tall, he plays at the shooting guard and small forward positions.
Papadionysiou began his pro career in the 2013–14 season, with AEK Athens of the Greek 2nd Division.[1] He then played with AEK Athens in Greece's First Division, in the following 2014–15 season. After that, Papadionysiou played with the Greek clubs Pagrati Athens (2015–16), Aiolos Astakou (2016–17), Iraklis Thessaloniki (2017–18), and Charilaos Trikoupis (2018–2020). While he was a member of Charilaos Trikoupis, he won the Greek 2nd Division championship, in the 2019–20 season.
Papadionysiou joined the Olympiacos B Development Team, for the 2020–21 season.[2] [3] On August 8, 2021, Papadionysiou returned to Charilaos Trikoupis.
Papadionysiou was a member of the junior national teams of Greece. With Greece's junior national teams, he played at the 2010 FIBA Europe Under-18 Championship, and at the 2012 FIBA Europe Under-20 Championship.[4]