Esan or ESAN may refer to:
Nigeria[edit]
- Esan people, an ethnic group of southern Nigeria
- Esan language, an Edoid language spoken by the Esan people
- Esanland, a cultural region and senatorial district of Nigeria, where the Esan people live
- Esan Central, LGA in Nigeria
- Esan North-East, LGA in Nigeria
- Esan South-East, LGA in Nigeria
- Esan West, LGA in Nigeria
Other countries[edit]
- Esan, Hokkaido, a former town in Japan now part of Hakodate, Hokkaido
- Mount Esan, a volcano in Hakodate, Hokkaido
- ESAN University, a university in Lima, Peru
- Isan, also known as Esan, a region of Thailand