| Vasilios Vallianos | |
| Fullname: | Vasilios Vallianos |
| Birth Date: | 11 September 1988 |
| Birth Place: | Agrinio, Greece |
| Height: | 1.74 m |
| Position: | Left-back |
| Youthclubs1: | AEK Athens |
| Years1: | 2006–2008 |
| Clubs1: | AEK Athens |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 2007 |
| Clubs2: | → Anagennisi Karditsa (loan) |
| Years3: | 2007–2008 |
| Clubs3: | → Nea Ionia (loan) |
| Years4: | 2008–2010 |
| Clubs4: | Panachaiki |
| Years5: | 2010–2011 |
| Clubs5: | FC St. Pauli II |
| Caps5: | 12 |
| Goals5: | 6 |
| Years6: | 2011–2013 |
| Clubs6: | VfB Lübeck |
| Caps6: | 32 |
| Goals6: | 2 |
| Years7: | 2013–2014 |
| Clubs7: | AO Chania |
| Caps7: | 20 |
| Goals7: | 0 |
| Years8: | 2014–2016 |
| Clubs8: | Enosis Neon Paralimni |
| Caps8: | 26 |
| Goals8: | 1 |
| Years9: | 2016–2017 |
| Clubs9: | OFI |
| Caps9: | 20 |
| Goals9: | 0 |
| Years10: | 2017–2018 |
| Clubs10: | Apollon Smyrnis |
| Caps10: | 3 |
| Goals10: | 0 |
| Years11: | 2018 |
| Clubs11: | Doxa Drama |
| Caps11: | 10 |
| Goals11: | 1 |
| Years12: | 2018–2020 |
| Clubs12: | Enosis Neon Paralimni |
| Caps12: | 29 |
| Goals12: | 2 |
| Years13: | 2020–2021 |
| Clubs13: | Ermis Aradippou |
| Caps13: | 6 |
| Goals13: | 0 |
| Years14: | 2021 |
| Clubs14: | ASIL Lysi |
| Caps14: | 12 |
| Goals14: | 1 |
| Years15: | 2021-2022 |
| Clubs15: | Anagennisi Deryneia |
| Caps15: | 25 |
| Goals15: | 2 |
| Years16: | 2022 |
| Clubs16: | Ermis Aradippou |
| Years17: | 2023 |
| Clubs17: | Anagennisi Deryneia |
| Caps17: | 6 |
| Goals17: | 0 |
| Nationalyears1: | 2006 |
| Nationalteam1: | Greece U19 |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 1 |
| Pcupdate: | 21:05, 2 November 2023 (UTC) |
Vasilios Vallianos (Greek, Modern (1453-);: Βασίλειος Βαλλιάνος; born 11 September 1988) is a Greek professional footballer who plays as a left-back.