| Term | Definition / Meaning / Stand for |
| IAA |
International Anaheim Association |
| IAB |
International Arts Bureau |
| IAC |
International Arts Council |
| IAD |
International Arts District |
| IAE |
International Arts Events |
| IAX |
International Arts Expo |
| IAF |
International Arts Foundation |
| IAG |
International Arts Group |
| IAH |
International Arts Hub |
| IAI |
International Arts Initiative |
| IAJ |
International Arts Joint |
| IAL |
International Arts League |
| IAM |
International Arts Market |
| IAN |
International Arts Network |
| IAO |
International Arts Outreach |
| IAP |
International Arts Program |
| IAQ |
International Arts Quality |
| IAR |
International Arts Resources |
| IAS |
International Arts Society |
| IAT |
International Arts Team |
| IAU |
International Arts Unit |
| IAV |
International Arts Ventures |
| IAW |
International Arts Workshops |
| IBA |
International Business Association |
| IBB |
International Business Bureau |
| IBC |
International Business Council |
| IBD |
International Business District |
| IBE |
International Business Events |
| IBF |
International Business Fund |
| IBH |
International Business Hub |
| IBI |
International Business Initiative |
| IBJ |
International Business Joint |
| IBL |
International Business League |
| IBM |
International Business Model |
| IBO |
International Business Outreach |
| IBQ |
International Business Quality |
| IBR |
International Business Resources |
| IBS |
International Business Solutions |
| IBT |
International Business Team |
| IBU |
International Business Unit |
| IBV |
International Business Ventures |
| ICA |
International Cultural Association |
| ICB |
International Cultural Bureau |
| ICC |
International Cultural Center |
| ICD |
International Cultural District |
| ICE |
International Cultural Events |
| ICF |
International Cultural Foundation |
| ICG |
International Cultural Group |
| ICH |
International Cultural Hub |
| ICI |
International Cultural Initiative |
| ICJ |
International Cultural Joint |
| ICL |
International Cultural League |
| ICM |
International Cultural Model |
| ICN |
International Cultural Network |
| ICO |
International Cultural Outreach |
| ICP |
International Cultural Program |
| ICQ |
International Cultural Quality |
| ICR |
International Cultural Resources |
| ICS |
International Cultural Solutions |
| ICT |
International Cultural Team |
| ICU |
International Cultural Unit |
| ICV |
International Cultural Ventures |
| IDA |
International Development Agency |
| IDB |
International Development Bureau |
| IDC |
International Development Corporation |
| IDD |
International Development District |
| IDE |
International Development Events |
| IDF |
International Development Fund |
| IDH |
International Development Hub |
| IDJ |
International Development Joint |