International Union of Crystallography
| Abbreviation | IUCr | 
|---|---|
| Formation | 1948 | 
| Type | INGO | 
| Region served  | Worldwide | 
| Official language  | English | 
| Parent organization | International Council for Science | 
| Website | www | 
The International Union of Crystallography (IUCr) is an organisation devoted to the international promotion and coordination of the science of crystallography. The IUCr is a member of the International Council for Science (ICSU).