Sergey may refer to:
*
Sergey (name), a Russian given name (including a list of people with the name)
*
Sergey, Switzerland, a municipality in Switzerland
*
''Sergey'' (wasp), a genus in subfamily
Doryctinae
The Doryctinae or doryctine wasps are a large subfamily of braconid parasitic wasps (Braconidae). Numerous genera and species formerly unknown to science are being described every year. This subfamily is presumably part of a clade containing o ...
{{Disambiguation