| Acronym | Definition |
|---|
| IA➣Iowa (US postal abbreviation) |
| IA➣Internet Archive |
| IA➣Interactive |
| IA➣Information Assurance |
| IA➣Information Architecture |
| IA➣International Airport |
| IA➣Intel Architecture |
| IA➣Impact Assessment |
| IA➣In and Around |
| IA➣International Affairs |
| IA➣Internet Access |
| IA➣International Academy |
| IA➣Industrial Automation (Star Wars, company who made R2-D2) |
| IA➣Internal Affairs |
| IA➣Investment Advisor |
| IA➣Individual Assistance (US DHS/FEMA) |
| IA➣Inter Alia (Latin: among other things) |
| IA➣Internal Audit |
| IA➣Irrigation Association |
| IA➣Italian American |
| IA➣Impact Analysis |
| IA➣Immediate Action (Military) |
| IA➣International Agreement |
| IA➣Intangible Assets |
| IA➣Inspection Académique (France) |
| IA➣Internet Appliance |
| IA➣Inspection Authorization |
| IA➣Individual Account |
| IA➣Inter-Agency |
| IA➣Illegal alien |
| IA➣Initial Assessment |
| IA➣Instruction and Assessment |
| IA➣Intelligent Agent |
| IA➣Implementation Agreement |
| IA➣Indian Airlines |
| IA➣Independent Agencies |
| IA➣Immunoassay |
| IA➣Institutional Advancement (various schools) |
| IA➣Intelligence Artificielle (French) |
| IA➣Investment Analysis |
| IA➣Isaac Asimov (author) |
| IA➣Identification and Authentication |
| IA➣Indian Army |
| IA➣Im Auftrag (German: By Order) |
| IA➣Inshallah (God willing) |
| IA➣Internal Assessment (International Baccalaureate testing) |
| IA➣Initial Attack (firefighting) |
| IA➣Independent Amount |
| IA➣Instructional Assistant |
| IA➣Industry Automation |
| IA➣Intelligence Analyst |
| IA➣In Absentia (Latin: On Behalf of and in the Absence Of) |
| IA➣Information Assistance |
| IA➣Implementing Agency |
| IA➣Invasive Aspergillosis |
| IA➣Intraarterial |
| IA➣Individual Augmentee |
| IA➣Interagency Agreement |
| IA➣Independent Assessment |
| IA➣Interfaith Alliance |
| IA➣Institute of Astronomy |
| IA➣Initial Appointment |
| IA➣Imperial Army (gaming) |
| IA➣Internet Audio |
| IA➣Institute of Aging |
| IA➣India Abroad (newspaper) |
| IA➣Information Asset |
| IA➣Information Analyst |
| IA➣Italian Army |
| IA➣Industrial Archaeology |
| IA➣Instantly Available |
| IA➣International Alert (UK peacebuilding organization) |
| IA➣Information Appliance |
| IA➣Interface Adapter |
| IA➣Installment Agreement |
| IA➣Intelligence Assessment |
| IA➣Investment Agreement |
| IA➣Intruder Alert |
| IA➣Iraqi Airways (IATA airline code) |
| IA➣Issuing Agency |
| IA➣Intelligent Application |
| IA➣Initial Action |
| IA➣Imperial Academy (Star Wars) |
| IA➣Interval Arithmetic |
| IA➣Incentive Award |
| IA➣International Alphabet |
| IA➣Instrumentation Amplifier |
| IA➣Individual Augmentation |
| IA➣Interface Analysis |
| IA➣Intelligence Amplification |
| IA➣Inspection Administration |
| IA➣Initial Appraisal (USACE) |
| IA➣Industrial Attachment |
| IA➣Internet Alliance |
| IA➣Instrument Airplane |
| IA➣Imperial Age |
| IA➣Island Alliance (Boston, Massachusetts) |
| IA➣It's Academic |
| IA➣Incremental Analysis |
| IA➣Ion-Acoustic |
| IA➣Integrity Agreement |
| IA➣Industrial Affiliates |
| IA➣Interface Architect |
| IA➣Initial Authorization |
| IA➣Internal Alarm |
| IA➣Information Attack |
| IA➣Implementing Arrangement |
| IA➣Impulse Approximation (electron momentum density) |
| IA➣Implementing Agent |
| IA➣Infamous Adventures (gaming website) |
| IA➣Invasion America (Dreamworks TV Series) |
| IA➣Integrated Agent |
| IA➣Interstellar Alliance (Babylon 5) |
| IA➣Imperator Augustus (Latin: Emperor Augustus, epigraphy) |
| IA➣Intermediate Agent (networking) |
| IA➣Interoperability Agreement |
| IA➣Irrigation/Aspiration (medical procedures) |
| IA➣Instructor/Advisor |
| IA➣Institutional Adaptation (US Army) |
| IA➣Ineffective Attempt |
| IA➣Interface Agreement |
| IA➣Input Axis |
| IA➣Indicated Altitude |
| IA➣Interim Accreditation |
| IA➣Indian Airways |
| IA➣Installation Assessment |
| IA➣Investigative Analyst |
| IA➣Inhalation Anaesthetics (pharmaceutical industry) |
| IA➣Instituti Albanologjik (Albanological Institute, Kosova) |
| IA➣Image Amplifier |
| IA➣Impedance Angle |
| IA➣Inherent Availability |
| IA➣Internet Aid |
| IA➣Interior Alliance (Kamloops, British Columbia, Canada) |
| IA➣Instable Angina (cardiology) |
| IA➣Irritant Agent |
| IA➣Inventory Automation |
| IA➣Installing Activity |
| IA➣Interrogation Arm (explosive detection aid) |
| IA➣Interactive Accountability |
| IA➣Input Acknowledgement |
| IA➣Imagery Analysis/Analyst |
| IA➣Implosion-Assembled (weapon) |
| IA➣Introducing Advisor (foreign exchange) |
| IA➣Ifugao Academy (Kiangan, Ifugao, Philippines) |
| IA➣Immediately Avaliable |
| IA➣Installation Accountant |