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

See also

• Aid (international aid)
• AIDS ? Acquired immunodeficiency syndrome
• USAID ? United States Agency for International Development

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