| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
1351  | Lough Inshagh Insagh,Lough Inshagh | Ireland, Ulster Donegal | lake | N 55° 1′ 18'' | W 7° 56′ 45'' |
1352  | Inistioge  Inis Tiog,Inis Tíog,Inishtig,Inistioge,Инистиоге,Иништиг | Ireland, Leinster County Kilkenny | populated place population 285 | N 52° 29′ 20'' | W 7° 3′ 46'' |
1353  | Inishvickillane Inis Mhic Aoibhleain,Inis Mhic Aoibhleáin,Inishvickillane,Vickillane Island | Ireland, Munster Co Kerry | island | N 52° 2′ 40'' | W 10° 36′ 28'' |
| 1354 | Inishturk Inishturk | Ireland, Connacht Galway | island | N 53° 42′ 13'' | W 10° 6′ 37'' |
| 1355 | Inishturk Inis Toirc,Inishturk,Inishturk South | Ireland, Connacht Galway | island | N 53° 30′ 44'' | W 10° 9′ 8'' |
| 1356 | Inishtrahull Inis Tra Tholl,Inis Trá Tholl,Inishtrahull | Ireland, Ulster Donegal | island | N 55° 25′ 55'' | W 7° 14′ 5'' |
| 1357 | Inishtooskert Inis Tuaisceart,Inishtooskert | Ireland, Munster Co Kerry | island | N 52° 7′ 52'' | W 10° 34′ 41'' |
| 1358 | Inishsirrer Inis Oirthir,Inishsirrer | Ireland, Ulster Donegal | island | N 55° 7′ 0'' | W 8° 20′ 0'' |
| 1359 | Inishshark Inishshark | Ireland, Connacht Galway | island | N 53° 36′ 42'' | W 10° 16′ 54'' |
| 1360 | Inishowen Inis Eoghain,Inishouehn,Inishouen,Inishowen,Inishowen Peninsula,Інішоуен,Инишоуэн | Ireland, Ulster Donegal | peninsula | N 55° 12′ 0'' | W 7° 20′ 0'' |
| 1361 | Inishnee Inis Ni,Inis Ní,Inishnee | Ireland, Connacht Galway | land-tied island | N 53° 24′ 0'' | W 9° 54′ 0'' |
| 1362 | Inishnabro Inis na Bro,Inis na Bró,Inishnabro,Nabro Island | Ireland, Munster Co Kerry | island | N 52° 3′ 25'' | W 10° 36′ 39'' |
| 1363 | Inishmurray Inis Muireadheach,Inishmurray | Ireland, Connacht County Sligo | island | N 54° 26′ 8'' | W 8° 39′ 36'' |
| 1364 | Inishmore Arainn,Aran-na-naomh,Aranmore,Inishmore,Árainn | Ireland, Connacht Galway | island | N 53° 7′ 44'' | W 9° 42′ 40'' |
| 1365 | Deer Island Deer Island,Inishmore,Inishmore Island,Inishmore i County Clare,Innismore,Oilean Fia,Oileán Fia,lu d... | Ireland, Munster Clare | island | N 52° 42′ 50'' | W 9° 2′ 11'' |
| 1366 | Inishmeane Inis Meain,Inis Meáin,Inishmeane | Ireland, Ulster Donegal | island | N 55° 6′ 14'' | W 8° 20′ 16'' |
| 1367 | Inishmacowney Horse Island,Inishmacowney,Inishnacowney | Ireland, Munster Clare | island | N 52° 41′ 6'' | W 9° 2′ 58'' |
| 1368 | Inishman IIA,Inis Meain,Inis Meáin,Inishmaan,Inishman | Ireland, Connacht Galway | island | N 53° 5′ 30'' | W 9° 35′ 8'' |
| 1369 | Inishlyre Fork Island,Inis Laidhre,Inishljre,Inishlyre,inislayar,Инишлйре,இனிஷ்லயர் | Ireland, Connacht County Mayo | island population 4 | N 53° 49′ 0'' | W 9° 39′ 0'' |
| 1370 | Inishloe Inis Lua,Inishloe,Low Island | Ireland, Munster Clare | island | N 52° 40′ 38'' | W 9° 1′ 8'' |
| 1371 | Inniskeen Inis Caoin,Inishkeen,Inishkin,Iniskeen,Inisken,Inniskeen,Инискен,Инишкин | Ireland, Ulster Monaghan | populated place population 273 | N 54° 0′ 0'' | W 6° 35′ 0'' |
| 1372 | Inishkea South Inis Ge Theas,Inis Gé Theas,Inishkea South | Ireland, Connacht County Mayo | island | N 54° 6′ 50'' | W 10° 13′ 11'' |
| 1373 | Inishgort Inis Goirt,Inishgort,Инишгорт | Ireland, Connacht Galway | island | N 53° 35′ 47'' | W 10° 15′ 46'' |
| 1374 | Inishglora Inis Gluaire,Inishglora | Ireland, Connacht County Mayo | island | N 54° 12′ 37'' | W 10° 7′ 39'' |
| 1375 | Inishfree Upper Inis Fraoigh,Inishfree,Inishfree Upper | Ireland, Ulster Donegal | island | N 54° 57′ 19'' | W 8° 26′ 43'' |
| 1376 | Inishfree Lower Inis Fraoigh,Inishfree,Inishfree Lower | Ireland, Ulster Donegal | island | N 55° 3′ 46'' | W 8° 22′ 50'' |
| 1377 | Inishfarnard Inis Fearn Ard,Inishfarnard | Ireland, Munster Cork | island | N 51° 42′ 59'' | W 10° 1′ 12'' |
| 1378 | Inisheer Inis Oirr,Inis Oirthir,Inis Oírr,Inisheer,Inisher,Inishir,aynyshyr,inishiia dao,yi ni xi er dao,Иниш... | Ireland, Connacht Galway | island | N 53° 3′ 27'' | W 9° 31′ 37'' |
| 1379 | Inishdooey Inis Duiche,Inis Dúiche,Inishdoej,Inishdooey,Oilean Duiche,Oileán Dúiche,Инишдоей | Ireland, Ulster Donegal | island | N 55° 11′ 33'' | W 8° 9′ 52'' |
| 1380 | Inishdalla Inis Deala,Inishdala,Inishdalla,Инишдала | Ireland, Connacht Galway | island | N 53° 40′ 51'' | W 10° 4′ 17'' |
| 1381 | Inishcorker Inis Corcair,Inishcorker | Ireland, Munster Clare | island | N 52° 40′ 5'' | W 9° 5′ 21'' |
| 1382 | Inishbofin Inis Bo Finne,Inis Bó Finne,Inishbofin | Ireland, Ulster Donegal | island | N 55° 10′ 29'' | W 8° 10′ 21'' |
| 1383 | Inishbofin Inis Bo Finne,Inis Bó Finne,Inishbofin | Ireland, Connacht Galway | island | N 53° 37′ 15'' | W 10° 12′ 32'' |
| 1384 | Inishbiggle Inis Bigil,Inishbiggle,Innish Biggle | Ireland, Connacht County Mayo | island | N 53° 59′ 39'' | W 9° 54′ 21'' |
| 1385 | Inishbarra Inis Bearachain,Inishbara,Inishbarra,Инишбара | Ireland, Connacht Galway | island | N 53° 16′ 57'' | W 9° 42′ 45'' |
| 1386 | Inishannon Inis Eonain,Inis Eonáin,Inishannon,Inishanon,Innishannon,Инишаннон,Инишанон | Ireland, Munster Cork | populated place population 767 | N 51° 45′ 55'' | W 8° 39′ 25'' |
| 1387 | Inchmore Inchmore | Ireland, Leinster Co Longford | island | N 53° 49′ 0'' | W 7° 34′ 0'' |
| 1388 | Inch Island Inch Island | Ireland, Ulster Donegal | land-tied island | N 55° 4′ 0'' | W 7° 30′ 0'' |
| 1389 | Inchigeelagh Inchigeelagh,Inse Geimhleach | Ireland, Munster Cork | populated place population 153 | N 51° 50′ 33'' | W 9° 7′ 30'' |
| 1390 | Inchcleraun Inchcleraun,Quaker Island | Ireland, Leinster Co Longford | island | N 53° 35′ 0'' | W 8° 0′ 0'' |
| 1391 | Inchagoill Inchagoil,Inchagoill,Inis an Ghaill,Инчагоил | Ireland, Connacht Galway | island | N 53° 29′ 0'' | W 9° 19′ 0'' |
| 1392 | Lough Inch Loch Inse,Lough Inch | Ireland, Connacht Galway | lake | N 53° 16′ 18'' | W 9° 10′ 6'' |
| 1393 | Inch An Inis,Inch,Inse Mocholmog,Inse Mocholmóg | Ireland, Leinster County Wexford | populated place | N 52° 44′ 20'' | W 6° 14′ 4'' |
| 1394 | Inagh Dysert,Eidhneach,Ina,Inagh,Inagkh,Ина,Инагх | Ireland, Munster Clare | populated place population 204 | N 52° 52′ 30'' | W 9° 10′ 54'' |
| 1395 | Glen of Imail Glen of Imaal,Glen of Imail | Ireland, Leinster County Wicklow | valley | N 52° 59′ 3'' | W 6° 35′ 4'' |
| 1396 | Illauneeragh An tOilean Iarthach,An tOileán Iarthach,Eragh,Ilauneragkh,Illauneeragh,Илаунерагх | Ireland, Connacht Galway | island | N 53° 17′ 6'' | W 9° 44′ 10'' |
| 1397 | Illanmaster Illanmaster,Illaunmaistir,Oilean Maistir,Oileán Máistir | Ireland, Connacht County Mayo | island | N 54° 19′ 34'' | W 9° 38′ 25'' |
| 1398 | Hurlers Cross Crois na hIomana,Crois na hIomána,Hurlers Cross | Ireland, Munster Clare | populated place | N 52° 42′ 56'' | W 8° 49′ 49'' |
| 1399 | Hungry Hill Cnoc Daod,Hungry Hill | Ireland, Munster Cork | mountain elevation 685m | N 51° 41′ 13'' | W 9° 47′ 32'' |
| 1400 | Hugginstown Baile hUguin,Baile hUgúin,Ballyhuggin,Hugginstown,Khagginstaun,Хаггинстаун | Ireland, Leinster County Kilkenny | populated place | N 52° 27′ 9'' | W 7° 14′ 48'' |
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