| Acronym | Sense | Language | Topics |
|---|---|---|---|
| ISA | International Sociological Association | In English | → Associations → Sociology |
| ISA | Institut Supérieur de l'Administration | In French | → Specialized or polytechnical colleges |
| ISA | Inertial Sensor Assembly | In English | |
| ISA | Instruction Set Architecture | In English | |
| ISA | Instructional Systems Approach | In English | |
| ISA | Interim Stowage Assembly | In English | |
| ISA | Information Spatiale et Archéologie | In French | → Geodesy, cartography → Archeology |
| ISA | Institut Supérieur d'Agriculture | In French | → Agricultural sciences |
| ISA | Invest in Sweden Agency | In English | → 33972 |
| ISA | International Seabed Authority (www.isa.org.jm) | In English | → Organizations and associations → International relations → Marine research, oceanography → Mining |