Sergei Ovchinnikov

 Sergei Ovchinnikov  may refer to:
 * Sergei Ovchinnikov (volleyball) (1969–2012), Russian volleyball coach
 * Sergei Ovchinnikov (footballer, born 1970), manager and former association football goalkeeper who played for the Russian national team
 * Sergei Ovchinnikov (footballer, born 1984), Russian footballer