Ohaba may refer to several places in Romania:
Ohaba, a commune in Alba County Ohaba (), a village in Șinca Commune, Braşov County Ohaba, a village in Melinești Commune, Dolj County Ohaba, a village in Bălănești Commune, Gorj County Ohaba (), a village in Lăpugiu de Jos Commune, Hunedoara County Ohaba, a village in Șovarna Commune, Mehedinţi County Ohaba-Mâtnic, a village in Copăcele Commune, Caraș-Severin County Ohaba-Jiu, a village in Bolboși Commune, Gorj County Ohaba de sub Piatră, a village in Sălașu de Sus Commune, Hunedoara County Ohaba-Ponor, a village in Pui Commune, Hunedoara County Ohaba-Sibişel, a village in Râu de Mori Commune, Hunedoara County Ohaba Streiului, a village administered by Călan town, Hunedoara County Ohaba-Forgaci, a village in Boldur Commune, Timiș County Ohaba Lungă, a commune in Timiș County, and its village of Ohaba Română Stâncești-Ohaba, a village in Dobra Commune, Hunedoara County Ohaba, a tributary of the Bistra in Caraș-Severin County Ohaba, another name for the river Valea Mare in Hunedoara County Ohaba (Secaș), a river in Alba County Ohaba (Strei), a river in Hunedoara County