| Acronym | Definition |
|---|
| IVA | Individual Voluntary Arrangement |
| IVA | Impuesto Sobre El Valor Añadido (Spanish VAT) |
| IVA | Imposta sul Valore Aggiunto (Italian: value added tax) |
| IVA | Intelligent Virtual Agents (Conference) |
| IVA | Inkomensvoorziening Volledig Arbeidsongeschikten (Dutch) |
| IVA | Isovaleric Acidemia |
| IVA | Imposto sobre Valor Agregado (Value Added Tax; Brazil) |
| IVA | Israel Venture Association |
| IVA | Intelligent Video Analysis (Bosch Security Systems) |
| IVA | Intravehicular Activity |
| IVA | Idaho Values Alliance (Boise, ID) |
| IVA | International Voice Association |
| IVA | Imposto de Valor Acrescentado (Portugal; same as VAT) |
| IVA | Intermediate Visual and Auditory |
| IVA | Integrated Vulnerability Assessment |
| IVA | Indian Vexillological Association |
| IVA | Interventricolare Anteriore (Italian) |
| IVA | Inductive Voltage Adder |
| IVA | Integrated Vocational Assessment (education) |
| IVA | Interactive Voice Assistant (CoolSpeak) |
| IVA | Internal Vulnerability Assessment |
| IVA | Iterative Viterbi Algorithm |
| IVA | Individual Video Access (GlowPoint) |
| IVA | Intraoperative Vascular Angiography |
| IVA | Integrated Voice Application |
| IVA | Informal Voluntary Agreement |
| IVA | Independent Verfication Audit |
| IVA | International Velux Award (architecture) |
| IVA | Influenza Virus A (infectious disease) |
| IVA | Interop Vendor Alliance (Microsoft) |
| IVA | Insertion dans la Vie Active (French: Integration into Working Life) |