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
- Ogham, a Medieval alphabet used to write the early Irish language
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