Alexandr Tkachenok
- Birthday: 11/20/1950
- Place of birth: Factory Red Star village, Vitebskaya oblast, USSR (Belarus)
- Fame for: Acting
- Also known as: Aleksandr Tkachyonok, Александр Ткачёнок, Александр Ткаченок, Aleksander Tkachyonok, Alexandr Tkachyonok, Alexander Tkachyonok, Alexander Tkachenok, Aleksandr Tkachenok, Aleksander Tkachenok