Igor Vladimirovich Zyuzin (Russian: ?´???? ?????´??????? ??´???; born May 29, 1960) is a Russian businessman, Chairman of the Board of Directors and a major shareholder of the mining and steel group "Mechel".
With a personal fortune of US$8.9 billion, he was at number 16 on the Forbes list of 200 richest Russian business people.
He lost most of his net worth to a record drop in the Mechel stock price by late 2013.