| CIIB | Cayman Islands Investment Bureau 
| Others |
| CIIB | Central Illinois Institute of Balance
| Others |
| CIIB | Centre de Ioga Iyengar de Barcelona
| Others |
| CIIB | Chitinase in Insectivorous Bats
| Others |
| CIIB | Citi Islamic Investment Bank
| Others |
| CIIB | Colegio Internacional de las Islas Baleares
| Others |
| CIIB | Corporate Information Infrastructure Board
| Others |
| CIIB | Corporate Information Integration Board
| Others |
| CIIB | Criminal Intelligence and Investigative Bureau
| Others |
| CIIB | Cultural Interchange Institute for Buddhists
| Others |