Other
- Detailed Hydrocarbon Analysis, which usually refers to gas chromatography or similar methods
- Dha (sword), a single-edged weapon found in Burma/Myanmar, Thailand and other parts of Southeast Asia
- Directory Harvest Attack, a method used by spammers to obtain email addresses
- Disarmament as Humanitarian Action, a research project carried out at the United Nations Institute for Disarmament Research
- Doctor of Health Administration, a professional doctoral degree
Read more about this topic: DHA