| Aleksandr Yanchenko | |
| Birth Date: | 1995 2, df=y |
| Birth Place: | Gomel, Belarus |
| Currentclub: | Lokomotiv Gomel |
| Clubnumber: | 10 |
| Position: | Forward |
| Youthyears1: | 2011–2012 |
| Youthclubs1: | Gomel |
| Years1: | 2013–2018 |
| Clubs1: | Gomel |
| Caps1: | 72 |
| Goals1: | 5 |
| Years2: | 2017 |
| Clubs2: | → Granit Mikashevichi (loan) |
| Caps2: | 0 |
| Goals2: | 0 |
| Years3: | 2019–2020 |
| Clubs3: | Naftan Novopolotsk |
| Caps3: | 34 |
| Goals3: | 9 |
| Years4: | 2021– |
| Clubs4: | Lokomotiv Gomel |
| Caps4: | 51 |
| Goals4: | 16 |
| Nationalyears1: | 2014–2016 |
| Nationalteam1: | Belarus U21 |
| Nationalcaps1: | 25 |
| Nationalgoals1: | 3 |
| Pcupdate: | 20 September 2023 |
| Ntupdate: | 7 September 2016 |
Aleksandr Yanchenko (Belarusian: Аляксандр Янчанка; Russian: Александр Янченко; born 14 February 1995) is a Belarusian professional footballer who plays for Lokomotiv Gomel.