NHSI

AcronymDefinition
NHSINational High School Invitational (basketball event)
NHSINational High School Institute (est. 1931; Northwestern University; Evanston, IL)
NHSINational Health Services, Inc. (California)
NHSINational Health Surveillance Infostructure (Health Canada)
NHSINational Healthcare Solutions, Inc.
NHSINormal-to-High Salt Intake (nutritional science)