| Abbreviation | Definition |
|---|---|
| DIB | Dictionary of Irish Biography |
| DIGI | Drinks Industry Group of Ireland |
| DIIB | Dundonald International Ice Bowl (Northern Ireland) |
| DINM | Denise Irish Navarette Mercado |
| DSAI | Development Studies Association Ireland |
| DSAI | Direct Selling Association Ireland |
| EFIC | Ergyevanglical Fellowship Of Irish Clergy |
| EHI | Equestrian Holidays Ireland |
| EISB | The Irish Statute Book |
| ELTI | Executive Language Training Ireland |
| EPCI | Evangelical Presbyterian Church in Ireland |
| ETBI | Education and Training Board Ireland |
| ETBI | Education Training Boards Ireland |
| FAI | F***ing A**holes of Ireland |
| FAI | F***ing Assholes of Ireland |
| FANI | Fire Authority of Northern Ireland |
| FFAI | Freedom For All Ireland |
| FIPF | Fellowship of the Irish Photographic Federation |
| FIWC | Federation of Irish Wolfhound Clubs |
| FIWC | Fighting Irish Wrestling Club |