Ivan Usov (born 7 October 1977) is a freestyle swimmer from Russia. He won a gold medal in the 4×100 freestyle relay at the 2003 World Aquatics Championships and silver in the 4×100 freestyle at the 2004 European Championships in Madrid. He represented his native country at the 2004 Summer Olympics in Athens, where he swam in the preliminary heats of the 4 × 100 m freestyle.