Isan, or ISAN, may refer to:
- Isan, a region of Thailand
- Isan, a dialect of the Yopno language
- International Standard Audiovisual Number, an ISO Standard for identification of audiovisual works.
- Isan (band), a British electronic music group
- Institute for Spectroscopy Russian Academy of Sciences
- International Society for Autonomic Neuroscience
|This disambiguation page lists articles associated with the title Isan.
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