ICRR
| Acronym | Definition |
|---|---|
| ICRR | Institute for Cosmic Ray Research (University of Tokyo) |
| ICRR | Illinois Central Railroad |
| ICRR | International Congress of Radiation Research |
| ICRR | Israeli Committee for Right of Residency |
| ICRR | Immigration Control and Refugee Recognition Act (1951; Ministry of Justice; Japan) |
| ICRR | Inner Core Ring Road (elevated expressway project; India) |
| ICRR | International Committee for Research in Reproduction (obstetrics and gynecology) |