Ogan may refer to:Ogan (surname) Ogan Ilir Regency Ogan Komering Ilir Regency Ogan Komering Ulu Regency East Ogan Komering Ulu Regency South Ogan Komering Ulu Regency Ogan River, in South Sumatra, Indonesia Ogan, a dialect of South Barisan Malay Ogan script Ogham, a medieval alphabet used to write the early Irish language Ogan, a fictional country located in the central europe