IA

IA, Ia, or ia may refer to:

Arts and entertainment

Indian Airlines, a domestic air carrier in India
Indian Army, part of the Military of India
Indiana Academy, a private Seventh-Day Adventist high school
Intact America, a non-profit organization against routine infant circumcision
International Academy, a public high-school in Bloomfield Hills, Michigan, US
International Artists, a record label
Internet Archaeology, an electronic journal
Inuit Ataqatigiit, a left-wing party in Greenland
Internet Archive, a non-profit organization dedicated to maintaining an archive of web and multimedia resources
Iraqi Airways (IATA airline designator IA)
Iraqi Army, US military abbreviation for Iraqi Army
Fabrica Argentina de Aviones (formerly "Fabrica militar de Aviones"), an Argentinian aircraft manufacturer (aircraft model prefix IA)
Impact Assessment, procedures that assess effects of public policy.

Indian Army, part of the Military of India
Individual augmentee, a U.S. military program for augmenting units with personnel from other organizations or branches of service
Initial appearance in a court of law, of a person charged with a crime
Internal affairs (law enforcement), a division of a law enforcement agency which investigates incidents and suspicions of lawbreaking and professional misconduct attributed to officers on the force
Iraqi Army, US military abbreviation for Iraqi Army

Ia of Persia, 4th-century martyr of Persia, feast day celebrated in Eastern Orthodox liturgy on September 11
Ia of Cornwall (5th or 6th century), saint of Cornwall
Mattias Eklundh, Swedish guitarist

IA (vocaloid), in software
IA-32, Intel Architecture, 32-bit
IA-64, Intel Architecture, 64-bit
Implicit authentication, methods that smart devices may use to authenticate a user by recognizing their behavior
Intelligence amplification, the process of enhancing human intelligence through the use of technology
Intelligent agent, in artificial intelligence, an autonomous entity which observes through sensors and acts upon an environment
Information architecture, the practice of structuring information (knowledge or data)
Information assurance, dealing with trust aspects of information
Integrated amplifier, an electronic device
InstallAnywhere, a Java-based software tool for creating installers or software packages, for multiple platforms
Instrumentation amplifier, a type of differential amplifier

Type Ia supernova, a subtype of Type I supernova
Interactions of actors theory, a theoretical framework of cybernetician and psychologist Gordon Pask

Intermediate in Arts, an academic degree
Internal audit, a business profession specializing in the removal of impediments to organizational objectives
International Arbiter, a chess title awarded by the World Chess Federation
Íþróttabandalag Akraness, an Icelandic football team playing in the Urvalsdeild