Ie, ie or IE may refer to:

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

Computing

• Information Engineering
• Internet Explorer, the web browser by Microsoft
• IntelliMouse Explorer, a line of computer mice designed by Microsoft
• Infinity Engine, the game engine behind Baldur's Gate among others
• .ie Irish top lebel CCtld

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

Places

• Inland Empire (California), 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 integrated systems of people, knowledge, equipment, energy, material and process
• Information Element, a networks abbreviation
• Information engineering, an approach to designing and developing information systems
• Information extraction, a type of information retrieval whose goal is to automatically extract structured or semistructured information from unstructured machine-readable documents
• Institute for Energy of the European Union
• Ionization energy, the energy required to strip an atom or molecule of an electron; see Ionization potential.

Language and culture

• The ie (digraph)
• International English, the concept of the English language as a global means of communication
• Indo-European (disambiguation), as in:
  • Indo-European languages
  • Indo-European people
  • Indo-European studies
• Ie (Japanese family system), the classical Japanese family system
• Ie (trading houses), Japanese cottage industry
• -ie, an English diminutive suffix
• .ie in ISO standards:
  • Interlingue, originally the Occidental language (ISO 639-1)
  • Republic of Ireland (ISO 3166-1 alpha-2)
• A spelling guideline of the English language: "i before e except after c"

cs:IE de:IE et:IE es:IE eo:Ie eu:IE fr:IE ko:IE it:IE nl:Ie ja:IE pl:IE pt:IE ksh:IE (Watt ?ßß datt?) ru:IE fi:Ie sv:IE th:IE vi:IE zh:Ie