Sergei Nikolayev

Sergei Nikolayev may refer to:

• Sergei Nikolayev (footballer) (born 1978), Russian football player
• Sergei Nikolayev (ice hockey) (born 1972), Russian ice hockey player
• Sergey Nikolaev (cyclist) (born 1988), Russian cyclist
• Sergey Nikolayev (shot putter) (born 1966), Russian shot putter
• Sergei Nikolaev (linguist) (born 1954), Russian linguist