| Abbreviation | Definition |
|---|---|
| COB | Church of the Brethren |
| COBC | Colonial Oaks Baptist Church |
| COBC | Community of Believers church |
| COBC | Country Oaks Baptist Church |
| COBC | Crab Orchard Baptist Church |
| COBU | Church Of Bible Understanding |
| COC | Church Of Christ |
| COCC | Council of Orthodox Christian Churches |
| COCFC | Church of Christ in Falls Church |
| COCM | Church Of Christian Meditators |
| COCN | Church of Christ North |
| COD | Church of the Open Door |
| COFE | Church of England |
| COG | The Church Of God |
| COGH | Church of God |
| COGH | Church of God Holiness |
| COGIC | Church Of God In Christ's |
| COGL | Church of Greater Lansing |
| COGP | Church of God Pentecostal |
| COGS | Church Of The Good Shepherd |