HIO


AcronymDefinition
HIOHole-In-One (chiropractic)
HIOHalt Input Output
HIOHealth Insuring Organization
HIOHire Immigrants Ottawa (Canada)
HIOHealth Information Organization
HIOHarvard International Office
HIOHorse Industry Organization
HIOHogere Informatica-Opleiding
HIOHigh Income Opportunities
HIOHorse Inspection Organization (inspects walking horses at horse shows)
HIOHigh Intensity Operations