Ooia is a genus of flowering plants in the Araceae, formally described in 2010. It two known species, both endemic to the island of Borneo. 1. \n* Ooia grabowskii (Engl.) S.Y.Wong & P.C.Boyce - Borneo (syn= Rhynchopyle grabowskii Engl., Piptospatha grabowskii (Engl.) Engl.) 2. \n* Ooia kinabaluensis (Bogner) S.Y.Wong & P.C.Boyce - Sabah, Brunei (syn= Hottarum kinabaluense Bogner, Piptospatha kinabaluensis (Bogner) Bogner & A.Hay)