NDA

NDA may stand for:

Military[edit]

National Dance Alliance, sister company of the National Cheer Association
National Dance Association, defunct association of the American Alliance for Health, Physical Education, Recreation and Dance
National Dental Association, an association for African-American dentists
Net Daemons Associates, a computer network and systems administration company
New Dutch Academy, an orchestra in The Hague, Netherlands
National Democratic Assembly, the English name of the Israeli political party Balad
National Disability Authority, an agency of the Irish Department of Children, Equality, Disability, Integration and Youth
Northern Domestic Airspace, a Canadian aviation organization
Nuclear Decommissioning Authority, an entity of the UK government

National Design Awards, awards given by the American National Design Museum
New Drug Application, to get a new drug approved in the United States by the Food and Drug Administration
Non-destructive analysis, a way to evaluate a material's properties without destroying it
Non-disclosure agreement, a legal contract regarding confidentiality
Notre Dame Academy, Patna, a girls' Roman Catholic secondary school in Patna, India
Najran Domestic Airport, an airport in Najran, Saudi Arabia
Nicolas Dupont-Aignan, a French politician