Aid (disambiguation)
- AIDS
- AIDS (disambiguation)
- Activation-induced cytidine deaminase
- Aid
- Aid (Würm)
- Aid (rapper)
- Aid, Missouri
- Aide (disambiguation)
- Americans for Informed Democracy
- Amputee identity disorder
- Artificial insemination by donor
- Assistance (disambiguation)
- Association for India's Development
- Autoimmune disease
- Charity (practice)
- Development aid
- EMV
- Eid (disambiguation)
- Feudal aid
- First aid
- George Charles Aid
- Help (disambiguation)
- Humanitarian aid
- JOSS II
- Matthew Aid
- USAID
- Welfare spending