| Acronym | Definition |
|---|
| AIH | Autoimmune Hepatitis |
| AIH | Art Institute of Houston (Texas) |
| AIH | Architecture in Helsinki (band) |
| AIH | American Institute of Homeopathy |
| AIH | Australian Institute of Horticulture |
| AIH | Artificial Insemination Husband |
| AIH | Artificial Insemination Homologous (breeding) |
| AIH | American Institute of Hypnotherapy |
| AIH | Association Internationale des Hydrogéologues (French: International Association of Hydrogeologists) |
| AIH | Advanced Image Hosting |
| AIH | Amelogenesis Imperfecta, Hypomaturation Type |
| AIH | Association des Internes en Hématologie (French: Association of Interns in Hematology) |
| AIH | Asociación Internacional de Hidatidología (Spanish) |
| AIH | Agence Immobilière Hammami (French; Tunisian real estate agency) |