Serghei Marghiev (Russian: Маргиев, Сергей Сосланович; born 6 November 1992) is a Moldovan athlete specialising in the hammer throw.

[1] He competed for Moldova at the 2012 Summer Olympics.

Born in Russia, he is the younger brother of fellow hammer throwers, Zalina Marghieva and Marina Nikişenko.

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