| Acronym | Definition |
|---|
| CHA➣Centrally Heated Air (classified ad listings) |
| CHA➣Charisma |
| CHA➣California Hospital Association (Sacramento, CA) |
| CHA➣Canadian Healthcare Association |
| CHA➣Catholic Health Association of the United States |
| CHA➣Cultural Heritage Administration (South Korea) |
| CHA➣Canadian Historical Association |
| CHA➣Chicago Housing Authority |
| CHA➣Children's Healthcare of Atlanta |
| CHA➣Craft and Hobby Association (Elmwood Park, New Jersey) |
| CHA➣Custom House Agent (India) |
| CHA➣Chattanooga Housing Authority (TN, USA) |
| CHA➣County Health Assessment (various locations) |
| CHA➣Coordination of Humanitarian Assistance |
| CHA➣College Hockey America |
| CHA➣Chunta Aragonesista (Aragonesist Union - Nationalist Party of Aragon) |
| CHA➣Certified Horsemanship Association |
| CHA➣Clearing House Association |
| CHA➣Community Health Aide |
| CHA➣Caribbean Hotel Association |
| CHA➣Chat File |
| CHA➣Channel a |
| CHA➣Community Health Advocates (New York) |
| CHA➣College Hockey Association (various schools) |
| CHA➣Consortium of Humanitarian Agencies |
| CHA➣Comprehensive Health Association (various locations) |
| CHA➣Cambridge Housing Authority (Cambridge, MA) |
| CHA➣Cessation of Hostilities Agreement (Uganda) |
| CHA➣Certified Hotel Administrator (AH&LA Educational Institute) |
| CHA➣Class Hierarchy Analysis |
| CHA➣Canadian Hockey Association |
| CHA➣Council on Hemispheric Affairs |
| CHA➣California Health Advocates |
| CHA➣Child Health Advocates (Colorado) |
| CHA➣Catholic Health Australia |
| CHA➣Ship Characteristics (TMINS) |
| CHA➣Clough, Harbour & Associates LLP |
| CHA➣California Healthcare Association |
| CHA➣Community Housing Aotearoa (New Zealand) |
| CHA➣Center for Humanities and the Arts (various schools) |
| CHA➣Center for Healthy Aging (California) |
| CHA➣Children's Hunger Alliance |
| CHA➣Capital Health Authority (Canada) |
| CHA➣Council for Hakka Affairs (est. 2001; Taiwan) |
| CHA➣Country Housing Authority (Australia) |
| CHA➣Continental Hockey Association |
| CHA➣Cheyenne Housing Authority (est. 1971; Cheyenne, WY) |
| CHA➣Canadian Hydrogen Association (now Canadian Hydrogen and Fuel Cell Association) |
| CHA➣Coordination Handicap et Autonomie (French: Disability Coordination and Autonomy) |
| CHA➣Cortez Hill Academy (San Diego, CA) |
| CHA➣Coalition for Hemp Awareness |
| CHA➣Colorado Health & Hospital Association |
| CHA➣Chattanooga, TN, USA - Cha Lovell Field (Airport Code) |
| CHA➣Chapter Alpha (unreal fan fiction community) |
| CHA➣Commander Heavy Artillery |
| CHA➣Cardiovascular Hospitals of America (Wichita, KS) |
| CHA➣Country Haven Academy |
| CHA➣Corporate Hospitality Association |
| CHA➣Center for Humanist Activism |
| CHA➣Complementary Healing Association (UK) |
| CHA➣Concept Hazard Analysis |
| CHA➣Compact Hollow-shaft Actuator |
| CHA➣Civil Hospital Ahmedabad |
| CHA➣Conical-Horn Antenna |
| CHA➣Cotswold Heritage Academy (UK) |
| CHA➣Connecticut Hospital and Affiliates |
| CHA➣Cowboy Heritage Association (Fort Worth, Texas) |
| CHA➣Call Handling Agent |
| CHA➣Chicago American League (baseball) |
| CHA➣Congenital Heart Anomaly |
| CHA➣Chicago Helicopter Airways, Inc. |
| CHA➣Chamber of Hispanic Affairs |
| CHA➣Christian Homeschoolers Association |
| CHA➣Chickasaw Horse Association |
| CHA➣Corporate Holdings of America |
| CHA➣Citywide Habitat Assessment (Seattle, WA) |
| CHA➣Chaudhuri, Hu, and Afshar Algorithm (also seen as C-H-A) |
| CHA➣Certified Hospice Administrator |