Ie

• i.e. (sometimes ie.), abbreviation for Latin id est, meaning "that is; in other words"

Computing

• .ie, Irish Internet country code top-level domain
• Industrial Ethernet, a hardened version of Ethernet used in industrial applications
• Infinity Engine, the game engine behind Baldur's Gate among others
• Information engineering, an approach to designing and developing information systems
• Internet Explorer, the web browser by Microsoft
• IntelliMouse Explorer, a line of computer mice designed by Microsoft

Education

• Institut Eksekutif, an educational institution in Sarawak, Malaysia
• IE Business School, formerly known as Instituto de Empresa, a global leading Business School in Madrid, Spain
• Institute for the Environment at University of North Carolina at Chapel Hill

Transport

• Iarnród Éireann, or Irish Rail
• Solomon Airlines, IATA airline designator

Arts/entertainment

• Iced Earth, a power metal band from the United States
• Improv Everywhere, a comedy group
• Into Eternity , a progressive death metal band from Canada

Places

• Republic of Ireland (ISO 3166-1 alpha-2 code IE)
• Inland Empire , in the United States
• Ie, Okinawa, in Japan
• Ie, the West Frisian name of the Dutch village of Ee, Dongeradeel.

Science and engineering

• Industrial ecology, the study of sustainable industrial systems
• Industrial engineering, the engineering discipline that concerns the development, improvement, implementation and evaluation of......
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