IHS

• Christogram
• Dictaphone
• HSL color space
• IBM HTTP Server
• IHS Markit
• In hoc signo
• Independence High School (Arizona)
• Independence High School (San Jose, California)
• Indian Health Service
• Indiana Historical Society
• Institute for Housing and Urban Development Studies
• Institute for Humane Studies
• Institute for Humanist Studies
• Integrated Household Survey
• Interlake High School
• International Headache Society
• International Horn Society
• Interstate Highway System
• Ipswich Historical Society
• Irondequoit High School
• Irvine High School
• Issaquah High School
• Ithaca High School (Ithaca, New York)
• The Indian High School, Dubai