AMH is a three-letter abbreviation with multiple meanings, as described below:
- Abington Memorial Hospital (United States; see Abington Township, Montgomery County, Pennsylvania)
- Academia Mexicana de la Historia, the national academy of history, in Mexico
- Alaska Marine Highway, ferry services along the west coast of Alaska and Washington state
- Alumni Memorial Hall (several American universities)
- American history, an abbreviation used in university course codes
- Amharic language (SIL code "amh"; ISO 639-2 language code "amh")
- Anna Mae He, subject of a legal custody battle between an American family and a Chinese family
- Anthony Michael Hall, an American actor
- Anti-Müllerian hormone, a protein that inhibits the development of Müllerian ducts during sexual development of human male embryos
- Arba Minch Airport, Ethiopia, from its IATA airport code
- Asynchronous method handling
- Atlantic Modal Haplotype, A genetic Y-chromosome haplotype belonging to the R1b haplogroup
- Atlas of Mutual Heritage
- Australian Medicines Handbook, a medical reference text commonly used in practice by health professionals in Australia
- Automated material handling
- Automated Message Handling System
- Aviation Structural Mechanic (Hydraulics)
- AmerUs Group, from its ticker symbol
- Anatomically modern humans referring to the sub-species Homo sapiens sapiens
- The ICAO Code for Alan Mann Helicopters, United Kingdom
