- Habeas Corpus, Writ of - A written order issued to ascertain if someone is imprisoned lawfully
- Hacktivism - Use of computers and networks to protest or to assist with other acts of resistance
- Haditha Massacre - Massacre of Iraqi civilians in Haditha committed by U.S. Marines
- Health - The general condition of the body; freedom from physical disease or pain
- Health Care - Preventive, diagnostic, therapeutic and other services related to the health of an individual
- Holidays - Days exempt from work, usually to commemorate some event
- Homeschooling - Educating children at home
- Humor - Comedy, wit, satire, sarcasm, irony, jokes, etc.