Sergey Mikhailovich Drozdov (Russian: ?????? ?????????? ??????ยด?; born 23 October 1969) is a retired Kazakhstani professional water polo player who last competed at the 2002 Asian Games as a member of the Kazakhstan men's national water polo team.
He is currently serves as a coach of the Kazakhstan men's national team and coach of the team Astana SK in Astana.