Hidra na iya nufin to: Hidra, Tunisiya, karamar hukuma ce a cikin Kasserine Governorate, Tunisia Hidra, Vest-Agder, tsohuwar gunduma a gundumar Vest-Agder, Norway Hidra (tsibiri), tsibiri ne a gundumar Flekkefjord a gundumar Agder, Norway Cocin Hidra, coci ne a gundumar Flekkefjord a gundumar Agder, Norway Hybrid Illinois Na'ura don Bincike da Aikace-aikace, HIDRA, na'urar haɗin toroidal a Jami'ar Illinois Urbana-Champaign Hitra (rashin fahimta) Hydra (rarrabuwa)