| AAG | Australian Association of Gerontology | In English | → Organizations and associations |
| AAGP | American Association for Geriatric Psychiatry | In English | → Associations → Psychiatry |
| AAHA | American Association of Homes for the Aging | In English | → Associations |
| AAHPC | Australian Association for Hospice and Palliative Care | In English | → Associations |
| ADEHPA | Association des Directeurs d'Établissements d'Hébergement pour Personnes Âgées | In French | → Associations → 649 |
| AOA | Administration on aging | In English | → Public administration, government |
| GRECC | Geriatric Research, Education and Clinical Center | In English | |
| GSA | Gerontological Society of America | In English | → Organizations and associations |
| ÖGGG | Österreichische Gesellschaft für Geriatrie und Gerontologie | In German | → Organizations and associations |
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