IN, In or in may refer to:

Places

* India (country code IN) * Indiana, United States (postal code IN) * Ingolstadt, Germany (license plate code IN)

Businesses and organizations

* Independent Network, a UK-based political association * Indiana Northeastern Railroad (Association of American Railroads reporting mark) * Indian Navy, a part of the India military * Infantry, the branch of a military force that fights on foot * MAT Macedonian Airlines (IATA designator IN)

In science and technology

* .in, the internet top-level domain of India * Inch (in), a unit of length * Indium (symbol In), a chemical element with atomic number 49 * Intelligent Network, a telecommunication network standard * Intra-nasal (insufflation), a method of administrating some medications and vaccines * Integrase, a retroviral enzyme

Other uses

* ''Imperishable Night'', the eighth official game in the Japanese ''Touhou'' series * Indonesian language (former ISO 639-1 language code; "id" used since November 3, 1989) * In Nomine, a title given to any of numerous short pieces of English polyphonic instrumental or vocal music during the 16th and 17th centuries


See also

* Inn (disambiguation) * INS {{disambiguation