IHS

• Christogram IHS or ΙΗΣ, a monogram symbolizing Jesus Christ
• In hoc signo, used by Roman emperor Constantine the Great

• Indian Health Service, an operating division of the US Department of Health and Human Services
• Dictaphone company division for healthcare dictating applications
• IHS Markit, a data publishing company (Information Handling Services) that originated in 1959, and has since merged with Markit.

• Institute for Housing and Urban Development Studies, an international institute
• Institute for Humane Studies, a US educational organization
• Institute for Humanist Studies, a think tank based in Washington, DC

• Indiana Historical Society, a historical society in the US
• International Headache Society, organisation for professionals helping people affected by headache
• International Horn Society, organization dedicated to horn-players
• Ipswich Historical Society, in Ipswich, Massachusetts, US

• Independence High School (Arizona), US
• Independence High School (San Jose, California)
• Irondequoit High School, Irondequoit, New York, US
• Irvine High School, Irvine, California, US
• Issaquah High School, Issaquah, Washington, US
• The Indian High School, Dubai, United Arab Emirates
• Interlake High School, Bellevue, Washington, US
• Ithaca High School, Ithaca, New York, US

• Intensity, hue, saturation, in the HSL color space
• IBM HTTP Server, a web server
• Integrated Heat Spreader, a heat spreader that serves as an interface between a chip and a heat sink

• Integrated Household Survey, a survey comprising multiple surveys in the United Kingdom
• Interstate Highway System, a road network in the United States
• Ironclads: High Seas, a naval simulator computer game

{{Disambiguation}}