Sergey Afanasyev

Sergey Afanasyev may refer to:


 * Sergey Afanasyev (engineer) (1918–2001), Soviet engineer and space and defense industry executive
 * Sergey Afanasyev (athlete) (born 1964), Russian middle-distance runner, in 1989 European Athletics Indoor Championships
 * Sergey Afanasyev (racing driver) (born 1988), Russian racing driver