Not to be confused with Aid.
For Wikipedia-specific use of "AID", see .
AID may refer to:
- Activation-Induced (Cytidine) Deaminase, an enzyme
- Algebraic Interpretive Dialogue, an implementation of JOSS II for the PDP-10
- Americans for Informed Democracy, an American non-profit organization
- Artificial Insemination by Donor, a type of human artificial insemination in which donor sperm are provided by an individual other than the recipient's partner
- Association for India's Development, an American/Indian non-profit organization
- Automatic Interaction Detection, a precursor to, and component of CHAID
