| Abbreviation | Definition |
|---|---|
| IBCM | International Baptist Church Ministries |
| ICB | International Church of Barcelona |
| ICBS | Incorporated Church Building Society |
| ICCC | International Council of Community Churches |
| ICGC | International Central Gospel Church |
| ICII | Independent Church In India |
| ICN | Israel the Church and |
| ICOC | Co operation Churches |
| ICOC | Indianapolis Church of Christ |
| ICOC | International Church of Christ |
| ICOC | International Churches Of Christ |
| ICOZ | Independent Churches of Zambia |
| IDMC | Intentional Disciple Making Churches |
| IECS | Intentionally Evangelistic Church Strategy |
| IEEC | International Ethiopian Evangelical Church |
| IFCA | Independent Fundamental Churches of America |
| IFIN | Interchurch Families International Network |
| IHC | Interchurch Holiness Convention |
| IJCS | International Japanese Church of Singapore |
| IKPC | Independent Korean Presbyterian Church |