| Acronym | Definition |
|---|
| CAH | Congenital Adrenal Hyperplasia |
| CAH | Critical Access Hospital |
| CAH | Child and Adolescent Health and Development |
| CAH | Chronic Active Hepatitis |
| CAH | Cambridge Ancient History |
| CAH | Carbonic Anhydrase |
| CAH | Classification Ascendante Hiérarchique (French: Agglomerative Hierarchical Classification; classification method) |
| CAH | Complexe Argilo Humique (French: Clay-Humic Complex) |
| CAH | Capture and Hold |
| CAH | Club de l'Amélioration de l'Habitat (French: Home Improvement Club) |
| CAH | Certificat d'Aptitude à l'Hyperbarie (French: Hyperbaric Fitness Certificate) |
| CAH | Citizens Against Hate |
| CAH | Computers and the Humanities |
| CAH | Cyanide and Happiness (web comic) |
| CAH | Center for the Advancement of Health |
| CAH | Comportement Animal et Humain (French: Animal and Human Behavior) |
| CAH | Centre on Aging and Health |
| CAH | Centre Aquitain de l'Habitat (French: Aquitaine Housing Center; home rehabilitation company; Canéjan, Aquitaine, France) |
| CAH | Cinnamic Acid Hydroxylase |
| CAH | Helicopter-Carrying Heavy Cruiser (US Navy) |
| CAH | Coalition for Animal Health |
| CAH | Campaign for Affordable Housing (Los Angeles, CA) |
| CAH | Centre d'Animation Historique (French: Animation History Center; Port-Louis, France) |
| CAH | Contact Action History |
| CAH | Cosine of Angle X = Adjacent Side Length / Hypotenuse Side Length (Right Angled Triangle) |
| CAH | Corporation of Advanced Hypnotherapy (UK) |
| CAH | Charge Against Hunger |
| CAH | Comité d'Agrément des Hébergeurs (French: Approval Committee of Hosts) |
| CAH | College at Home (education) |
| CAH | Clinics and Hospitals (California) |