International Union of Radio Science
| Abbreviation | URSI |
|---|---|
| Formation | 1919 |
| Type | INGO |
Region served | Worldwide |
Official language | English, French |
President | Ari Sihvola (Finland) |
Parent organization | International Council for Science |
| Website | www |
The International Union of Radio Science (abbreviated URSI, after its French name, French: Union radio-scientifique internationale) is one of 26 international scientific unions affiliated to the International Council for Science (ICSU).