| Anglicised spelling | Irish | English translation | Example |
|---|---|---|---|
| agha, aghy, aghey, augha | achadh | field | Aghalee, Aughagower |
| ard | ard | high/height | Ardglass |
| ath | áth | ford | Athlone |
| bally | baile | homestead/settlement | Ballymena |
| bally, balla(gh), bella(gh) | bealach | pass/passage | Ballyclare, Ballaghmore |
| bane, baun, bain | bán | white | Strabane, Cregganbaun, Kinbain |
| beg | beag | small | Carrickbeg |
| bel, bell | béal | mouth/rivermouth | Belfast |
| ben, bin | binn/beann | peak | Benbaun, Binevenagh |
| boy | buí | yellow | Bawnboy |
| brack | breac | mottled | Mullaghbrack |
| bun | bun | river’s bottom/foot/mouth | Bundoran |
| cashel | caiseal | stone ring-fort | Cashel (Tipperary), Cashel (Galway) |
| cappa(gh) | ceapach | plot/tillage | Cappamore, Cappagh |
| carn | carn | cairn | Carnmoney |
| carrow, carry | ceathrú | quarter | Carrowdore, Carryduff |
| carrig, carrick, craig | carraig/creig | rock/rocky outcrop | Carrigaline, Carrickfergus, Craigarogan |
| cahir, caher | cathair | stone ring-fort | Cahircon, Caherdaniel |
| clare | cláir | level land | Cooraclare |
| clough, clogh | cloch | rock | Cloughjordan, Clogheen |
| clon, clone, cloon | cluain | meadow | Clonmel, Cloondara |
| coom | cúm | hollow | Coomkeen |
| cor | corr | small round hill | Corblonog |
| corry, curry | coire | corrie | Rockcorry, Tubbercurry |
| croagh | cruach | stack | Croaghgorm |
| cul, cool | cúl | back | Coolmine, Cultra |
| cul, cool | cuil | nook/corner | Coolock |
| derry | doire | grove/oak-grove | Derry |
| dona(gh) | domhnach | church | Donaghadee, Donabate |
| droghed, drohed, drohid | droichead | bridge | Drogheda, Clondrohid |
| drum, drom | druim/droim | ridge | Dromore, Drumshanbo |
| duff, duv | dubh | black | Claddaghduff, Cloughduv |
| dun, doon | dún | stronghold/fort | Dungannon, Doonbeg |
| ennis | inis | island | Enniskillen |
| esk, eish | eiscir | esker | Eskra |
| fin, finn | fionn | clear/white/fair | Finglas |
| freagh, frack | fraoch | heather | Letterfrack |
| garv | garbh | rough | Garvaghey |
| glas, glass | glas | green | Glasnevin |
| glen, glan | gleann | valley | Glenties, Glanmire |
| gorm | gorm | blue | Glengormley |
| gort | gort | field | Gortnahoe |
| illan, illaun | oileán | island | Illaunmaistir |
| inish, innish, innis | inis | island | Inniskeen, Inishmaan |
| kil, kill | cill | churchyard or graveyard | Kildare |
| kil, kill | coill | woodland[1] | Kilcogy |
| kin, ken | cionn/ceann | head | Kinallen, Kenmare |
| knock | cnoc | hill | Knockcloghrim |
| lea | liath | grey | Killylea |
| letter | leitir | hillside | Letterkenny |
| lis | lios | earthen ring-fort | Liscannor |
| lough | loch | lake | Loughgall |
| lurgan | lorgain | long ridge | Lurgan |
| maum, maam | mám | mountain pass | Maum, Maam Cross |
| magh, may, moy, moi(gh) | maigh/machaire | plain | Magherafelt, Maynooth, Moycullen |
| mona, money | móna/monaidh | peatland/turf | Cornamona, Ballymoney |
| mulla(gh) | mullach | summit | Mullaghbawn |
| mullin | muileann | mill | Mullingar |
| more | mór | big/great | Tullamore |
| noe | nua | new | Ballynoe |
| owen | abhainn | river | Owenbeg |
| poll, poul | poll | hole | Pollagh, Poulaphouca |
| port | port | stronghold/fort | Portlaoise |
| port | port | landing place | Portadown |
| rath, rah | ráth | earthen ring-fort | Rathfarnham, Raheny |
| rea(gh), reva(gh) | riabhach | brindled/speckled | Moneyreagh, Cloonsheerevagh |
| roe | rua | red | Carraroe |
| ros, rosh, rus, rush | ros | wooded promontory | Roscrea, Kilrush |
| sall, salla, sally | sail(each) | willow(s) | Ballysally, Sallins |
| shan | sean | old | Shandon |
| sheskin | seiscenn | marsh/quagmire | Sheskin |
| ske, skey, skay, skea(gh) | sceach | hawthorn | Skeheenarinky, Ballyskeagh |
| sragh, stra | sragh | floodplain | Stranolar, Sragh |
| slieve | sliabh | mountain | Slieve Donard |
| termon | tearmann | refuge/sanctuary | Termonfeckin |
| tieve | taobh | hillside | Tievebulliagh |
| tyr, tir | tír | territory | Tyrone, Tirconnell |
| tober, tubber | tobar | water well | Tobermore, Tubberclare |
| tra | trá | beach/strand | Tramore |
| tuam, toom | tuaim | burial mound | Tuam, Toomevara |
| tully, tulla(gh) | tulach | hillock/mound/heap | Tullyhogue, Tullamore |
| orla, urlar | urlar | floor/flat land | Stranolar, Urlar |
| vea(gh), vei(gh) | bheith | (of) birch | Ballyveagh |
