NIMH or NiMH may refer to:
- Nickel–metal hydride battery, a type of electrical battery
- National Institute of Mental Health, an agency of the United States government
- National Institute of Medical Herbalists, a professional organisation in the United Kingdom
- Rats of NIMH, a series of children's books
- The Secret of NIMH, a 1982 American animated fantasy adventure drama film
- The Secret of NIMH 2: Timmy to the Rescue, a 1998 direct-to-video animated movie
|This disambiguation page lists articles associated with the title NIMH.
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