Oleksandr Oleksiyovych Serdyuk (Ukrainian: Олександр Олексійович Сердюк; born 3 July 1978) is an athlete from Ukraine.

Serdyuk competed at the 2004 Summer Olympics in men's individual archery.

Serdyuk was also a member of the bronze medal Ukrainian men's archery team at the 2004 Summer Olympics.

At the 2008 Summer Olympics in Beijing, Serdyuk finished his ranking round with a total of 661 points, which gave him the 20th seed for the final competition bracket in which he faced Jens Pieper in the first round, beating the German 107-105.

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