IHS

IHS may refer to:

Institutes

• Institute for Housing and Urban Development Studies, international institute
• Institute for Humane Studies, US educational organization
• Institute for Humanist Studies

Schools

• Independence High School (Glendale, Arizona)
• Irondequoit High School, Irondequoit, New York, US
• Isha Home School, India
• Issaquah High School, Issaquah, Washington, US
• The Indian High School, Dubai - United Arab Emirates

Societies

• Indiana Historical Society, US
• International Headache Society, for professionals
• International Horn Society, organization dedicated to horn-players
• Ipswich Historical Society, in Ipswich, Massachusetts, USA

Other

• A Christogram, IHS or ΙΗΣ, for Jesus
• Dictaphone company division for healthcare dictating applications
• IBM HTTP Server, a Web server
• IHS Inc., Information Handling Services, US
• IHS Press, Catholic press, Virginia, US
• In hoc signo, used by Roman emperor Constantine the Great
• Indian Health Service of the US Department of Health and Human Services, for recognised tribes
• Intensity, hue, saturation, IHS or HSI, in the HSL color space
• Integrated Household Survey, UK
• Ironclads: High Seas, a naval simulator computer game