Nikolay Sergeyevich Yevseyev (; born 16 April 1966) is a Russian former freestyle swimmer. He won a silver and a bronze medal in 4 × 100 m relays at the 1986 World Aquatics Championships. Two years later he competed at the 1988 Summer Olympics in three relays and won a silver and a bronze medal. In the 4 × 100 m medley relay he swam only in the preliminary round, whereas his team was disqualified in the 4 × 200 m freestyle relay.