ICS
- .ics
- Android Ice Cream Sandwich
- Donald Bren School of Information and Computer Sciences
- Ganz CSMG
- Graduate School of International Corporate Strategy
- ICS Africa
- ICS Vortex
- Ic (disambiguation)
- Iconsiam
- Image Cytometry Standard
- Immersion Composition Society
- Imperial Civil Service
- In Channel Select
- Incident Command System
- Indian Central School
- Indian Civil Service
- Indian National Congress (Socialist)
- Industrial control system
- Information and computer science
- Inhaled corticosteroid
- Inmate Calling Service
- Institute for Christian Studies
- Institute for Computational Sustainability
- Institute of Chartered Shipbrokers
- Institute of Classical Studies
- Institute of Cornish Studies
- Integrated care system
- Inter-Community School Zürich
- InterCity Slovenia
- Intercostal space
- Intermountain Christian School
- International Chamber of Shipping
- International Channel Shanghai
- International Christian School (Hong Kong)
- International Citizen Service
- International Classification for Standards
- International Code of Signals
- International Commission on Stratigraphy
- International Communist Seminar
- International Community School (Kirkland, Washington)
- International Community School (Singapore)
- International Community School (Thailand)
- International Community School (UK)
- International Community School of Addis Ababa
- International Continence Society
- International Convention on Salvage
- International Correspondence Schools
- Internet Connection Sharing
- Internet chess server
- Investor-state dispute settlement
- Irish Computer Society
- Islesboro Central School
- Israeli Cassini Soldner
- The Border (TV series)