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| Townland | Other Names | Acres | County | Barony | Civil Parish | Poor Law Union |
|---|---|---|---|---|---|---|
| Odagh | 70001000000000000001 | Kilkenny | Crannagh | Odagh | Kilkenny | |
| Oldcastle Lower | 7002172000000000000172 | Kilkenny | Kells | Killamery | Callan | |
| Oldcastle Upper | 7002195000000000000195 | Kilkenny | Kells | Killamery | Callan | |
| Oldcourt | 7002345000000000000345 | Kilkenny | Ida | Clonamery | Thomastown | |
| Oldcourt | 7002517000000000000517 | Kilkenny | Iverk | Fiddown | Carrick on Suir | |
| Oldgrange | 7002717000000000000717 | Kilkenny | Gowran | Graiguenamanagh | Thomastown | |
| Oldpark | 700117000000000000017 | Kilkenny | Crannagh | St. Canice | Kilkenny | |
| Oldtown | 7002296000000000000296 | Kilkenny | Knocktopher | Jerpointchurch | Thomastown | |
| Oldtown | 7002390000000000000390 | Kilkenny | Shillelogher | Burnchurch | Callan | |
| Oldtown | 7002282000000000000282 | Kilkenny | Crannagh | Tullaroan | Kilkenny | |
| Oldtown | 7002556000000000000556 | Kilkenny | Fassadinin | Grangemaccomb | Castlecomer | |
| Oldtownhill | 7002403000000000000403 | Kilkenny | Crannagh | Tullaroan | Kilkenny | |
| Ossoryhill | 7002518000000000000518 | Kilkenny | Gowran | Kilderry | Kilkenny | |
| Outrath | 7002528000000000000528 | Kilkenny | Shillelogher | Outrath | Kilkenny | |
| Ovenstown | 7002610000000000000610 | Kilkenny | Shillelogher | Earlstown | Callan | |
| Owning | 7002799000000000000799 | Kilkenny | Iverk | Owning | Carrick on Suir |
Read more about this topic: List Of Townlands In County Kilkenny