Margarita Sergeyevna Aliychuk (Russian: Маргарита Серге́евна Алийчук, born 10 August 1990) is a Russian group rhythmic gymnast and Olympic champion.

Aliychuk was a member of the gold medal-winning Russian group at the 2007 World Championships in Patras, Greece.

She was also a member of the Russian group that competed at the 2008 Summer Olympics in Beijing where she received a gold medal in the rhythmic group competition.

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