| Acronym | Definition |
|---|
| INCA | Instituto Nacional de Cãncer (Portuguese: National Cancer Institute; Brazil) |
| INCA | Institut National du Cancer (French: National Cancer Institute) |
| INCA | Institut National Canadien pour les Aveugles (Canadian National Institute for the Blind) |
| INCA | Iceland Nature Conservation Association |
| INCA | Instituto Nacional de Ciencias Agricolas (Cuba) |
| INCA | Ion and Neutral Camera (Cassini Plasma Spectrometer) |
| INCA | Interhemispheric Differences in Cirrus Properties from Anthropogenic Emissions |
| INCA | International Nature & Cultural Adventures (Emeryville, CA) |
| INCA | Instinet ECN (stock symbol) |
| INCA | Intelligence Communications Architecture |
| INCA | Interleaved Native Compiled Code Architecture (electrical engineering) |
| INCA | INitiative en Combustion Avancée (French: Advanced Combustion Initiative) |
| INCA | Iloilo National College of Agriculture (Philippines) |
| INCA | Interactive Controls Analysis (NASA) |
| INCA | Industrielle Computer Anwendungen |
| INCA | Integrated Nuclear Communications Assessment |
| INCA | Individuelle et Nationale des Consommations Alimentaires (French: Individual and National Food Consumption) |
| INCA | Inequality Necessary Conditions Analyzer |
| INCA | International Career Academy (Canada) |