Nikolay Konstantinovich Kruglov (Russian: Никола́й Константи́нович Кругло́в; born 31 January 1950) is a former Soviet Union biathlete.

[1] At the 1976 Olympics in Innsbruck he won gold medals in the 20 km individual and with the men's relay team.

All results are sourced from the International Biathlon Union.

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