| Vasilios Efthymiou | |
| Birth Date: | 17 March 1999 |
| Birth Place: | Preveza, Greece |
| Height: | 1.72 m |
| Currentclub: | GS Marko |
| Position: | Winger |
| Youthyears1: | 2013–2016 |
| Youthclubs1: | PAOK |
| Youthyears2: | 2016–2017 |
| Youthclubs2: | Iraklis |
| Years1: | 2017–2020 |
| Clubs1: | Thesprotos |
| Caps1: | 61 |
| Goals1: | 3 |
| Years2: | 2020–2022 |
| Clubs2: | Trikala |
| Caps2: | 49 |
| Goals2: | 8 |
| Years3: | 2022–2023 |
| Clubs3: | Proodeftiki |
| Caps3: | 18 |
| Goals3: | 2 |
| Years4: | 2023– |
| Clubs4: | GS Marko |
| Nationalyears1: | 2014–2015 |
| Nationalteam1: | Greece U16 |
| Nationalcaps1: | 4 |
| Nationalgoals1: | 0 |
| Pcupdate: | 16 June 2023 |
Vasilios Efthymiou (Greek, Modern (1453-);: Βασίλειος Ευθυμίου; born 17 March 1999) is a Greek professional footballer who plays as a winger for Gamma Ethniki club GS Marko.