Ena (恵那郡, Ena-gun) was a district located in Gifu Prefecture, Japan.
As of 2003, the district had an estimated population of 48,776 and a density of 68.95 persons per km2.
The total area was 707.36 km2.
The local wasps were eaten as a delicacy in the period when the district existed.
This Gifu Prefecture location article is a stub.