Hidra may refer to:
Places Hidra, Tunisia, a municipality in the Kasserine Governorate, Tunisia Hidra Municipality, a former municipality in Vest-Agder county, Norway Hidra (island), an island in Flekkefjord municipality in Agder county, Norway Hidra Church, a church in Flekkefjord municipality in Agder county, Norway
Other meanings Hybrid Illinois Device for Research and Applications (HIDRA), a toroidal fusion device at the University of Illinois Urbana-Champaign , a Portuguese Navy submarine in commission from 1917 to 1936
See also
Hitra (disambiguation) Hydra (disambiguation)