| AChR | acetylcholine receptor
| Others |
| ACHR | Advisory Committee on Health Research
| Others |
| ACHR | Alabama Council on Human Relations
| Others |
| ACHR | Albanian Center for Human Rights
| Others |
| ACHR | Albuquerque Center for Hope Recovery
| Others |
| ACHR | Algoma Central & Hudson Bay Railway
| Others |
| ACHR | American Convention on Human Rights
| Others |
| ACHR | Arab Charter on Human Rights
| Others |
| ACHR | Asian Centre for Human Rights
| Others |
| ACHR | Asian Coalition for Housing Rights
| Others |
| ACHR | Australian Centre for Health Research
| Others |
| ACHR | Axiomatic Combinatorial Hamiltonian Recursive
| Others |