| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
4251  | L'Aiguille Rouge Aiguille Rouge,L'Aiguille Rouge | France, Provence-Alpes-Côte d'Azur Hautes-Alpes > Arrondissement of Briançon > Névache | peak elevation 2538m | N 45° 3′ 0'' | E 6° 39′ 0'' |
| 4252 | Aiguille Rouge  Aiguille Rouge | France, Rhône-Alpes Savoy > Arrondissement of Albertville > Villaroger | peak elevation 3220m | N 45° 33′ 6'' | E 6° 50′ 53'' |
| 4253 | Île Ronde | France, Brittany | island | N 48° 19′ 27'' | W 4° 27′ 46'' |
| 4254 | Pointe de Ronce Dome de Ronce,Dôme de Ronce,Pointe de Ronce | France, Rhône-Alpes Savoy > Arrondissement of Saint-Jean-de-Maurienne > Val-Cenis | peak elevation 3612m | N 45° 15′ 51'' | E 6° 58′ 42'' |
| 4255 | La Brecha de Rolando Brecha de Rolando,Brecha de Roldan,Brecha de Roldán,Breche de Roland,La Brecha de Rolando,La Breche ... | ES,FR | pass elevation 2804m | N 42° 41′ 12'' | W 0° 1′ 42'' |
| 4256 | Rognosa d'Étache Rognosa d'Etiache | FR,IT | peak elevation 3382m | N 45° 8′ 7'' | E 6° 50′ 9'' |
| 4257 | Pic de Rochebrune Grand Pic de Rochebrune | France, Provence-Alpes-Côte d'Azur Hautes-Alpes > Arrondissement of Briançon > Cervières | peak elevation 3320m | N 44° 49′ 18'' | E 6° 47′ 15'' |
| 4258 | Omey Island Lomaidh,Omey Island | Ireland, Connacht Galway | island | N 53° 31′ 58'' | W 10° 9′ 52'' |
| 4259 | Old Head of Kinsale Kinsale Head,Old Head of Kinsale | Ireland, Munster Cork | cape | N 51° 36′ 14'' | W 8° 32′ 4'' |
| 4260 | Nowen Hill Cnoc na nAbhann,Nowen Hill,Owen Hill | Ireland, Munster Cork | mountain elevation 535m | N 51° 43′ 20'' | W 9° 14′ 39'' |
| 4261 | North Bull Island An Bulla Thuaidh,Bull Island,North Bull Island,Qilean an Bhulla,Qileán an Bhulla | Ireland, Leinster Dublin | island | N 53° 22′ 17'' | W 6° 9′ 0'' |
| 4262 | Neifinn Bheag Neifinn Bheag,Nephin Beg,Nephin Beg Range | Ireland, Connacht County Mayo | mountains elevation 627m | N 54° 1′ 48'' | W 9° 37′ 50'' |
| 4263 | Nephin Neifinn,Nephin | Ireland, Connacht County Mayo | mountain elevation 806m | N 54° 0′ 47'' | W 9° 22′ 6'' |
| 4264 | Mweenish Island Mainis,Maínis,Mweenish Island | Ireland, Connacht Galway | island | N 53° 18′ 16'' | W 9° 50′ 50'' |
| 4265 | Mweelrea Cnoc Maol Reidh,Cnoc Maol Réidh,Muilrea,Mweelrea | Ireland, Connacht County Mayo | mountain elevation 814m | N 53° 38′ 0'' | W 9° 50′ 0'' |
| 4266 | Mutton Island Mutton Island | Ireland, Connacht Galway | island | N 53° 15′ 16'' | W 9° 3′ 13'' |
| 4267 | Mutton Island Mutton Island | Ireland, Munster Clare | island | N 52° 48′ 37'' | W 9° 31′ 24'' |
| 4268 | Musheramore Musheramore | Ireland, Munster Cork | mountain elevation 644m | N 52° 1′ 0'' | W 8° 59′ 0'' |
| 4269 | Sheep's Head Muntervary,Sheep Head,Sheep's Head,Sheep’s Head | Ireland, Munster Cork | cape | N 51° 32′ 27'' | W 9° 51′ 5'' |
| 4270 | Mullet Peninsula Erris Peninsula,Leithinis an Mhuirthead,Mullet,Mullet Island,Mullet Peninsula | Ireland, Connacht County Mayo | peninsula | N 54° 12′ 0'' | W 10° 3′ 0'' |
| 4271 | Mullaghareirk Mountains Mullach an Radhairc,Mullaghareirk,Mullaghareirk Mountains | Ireland, Munster Cork | mountains | N 52° 20′ 0'' | W 9° 8′ 0'' |
| 4272 | Mullaghanattin Mulagkhanatin,Mullach an Aitinn,Mullaghanattin,jbl mwlajanatyn,Мулагханатин,جبل مولاجاناتين | Ireland, Munster Co Kerry | mountain elevation 773m | N 51° 56′ 1'' | W 9° 50′ 4'' |
| 4273 | Muckish An Mhucais,Muckish,Muckish Mountain,jbl mwkysh,جبل موكيش | Ireland, Ulster Donegal | mountain elevation 667m | N 55° 6′ 19'' | W 7° 59′ 39'' |
| 4274 | Mizen Head Mizen Head | Ireland, Munster Cork | cape | N 51° 26′ 56'' | W 9° 49′ 17'' |
| 4275 | Maumtrasna Mam Trasna,Maumtrasna,Mám Trasna | Ireland, Connacht County Mayo | mountain elevation 682m | N 53° 36′ 47'' | W 9° 34′ 11'' |
| 4276 | Mason Island Mason Island,Oilean Maisean,Oileán Máisean | Ireland, Connacht Galway | island | N 53° 18′ 1'' | W 9° 53′ 9'' |
| 4277 | Mangerton Mountain An Mhangarta,Mangerton,Mangerton Mountain | Ireland, Munster Co Kerry | mountain elevation 839m | N 51° 58′ 0'' | W 9° 30′ 0'' |
| 4278 | Malin Head Cionn Mhalanna,Cionn Mhálanna,Malin Head,Mhalanna Cionn,Mhálanna Cionn | Ireland, Ulster Donegal | headland | N 55° 23′ 2'' | W 7° 22′ 18'' |
| 4279 | Macgillycuddys Reeks Macgillycuddys Reeks | Ireland, Munster Co Kerry | mountains | N 52° 0′ 0'' | W 9° 42′ 0'' |
| 4280 | Lugnaquilla Log na Coille,Lugnaquilla | Ireland, Leinster County Wicklow | mountain elevation 925m | N 52° 58′ 1'' | W 6° 27′ 52'' |
| 4281 | Loop Head Loop Head | Ireland, Munster Clare | cape | N 52° 33′ 34'' | W 9° 56′ 18'' |
| 4282 | Long Island Long Island | Ireland, Munster Cork | island | N 51° 29′ 35'' | W 9° 34′ 1'' |
| 4283 | Little Sugar Loaf Cnoc Gilapir,Giolspar,Little Sugar Loaf | Ireland, Leinster County Wicklow | mountain elevation 342m | N 53° 9′ 55'' | W 6° 7′ 0'' |
| 4284 | Little Skellig Little Skellig,Little Skelligs,Sceilig Bheag | Ireland, Munster Co Kerry | rock | N 51° 46′ 54'' | W 10° 30′ 31'' |
| 4285 | Little Island An tOilean Beag,An tOileán Beag,Little Island | Ireland, Munster County Waterford | island | N 52° 14′ 50'' | W 7° 2′ 55'' |
| 4286 | Lettermore Island Lettermore Island | Ireland, Connacht Galway | island | N 53° 18′ 5'' | W 9° 40′ 12'' |
| 4287 | Letterbrickaun Binn Bhriocain,Leitir Brecain,Leitir Brecáin,Letterbreckaun,Letterbrickaun | Ireland, Connacht Galway | mountain elevation 667m | N 53° 32′ 0'' | W 9° 43′ 39'' |
| 4288 | Mount Leinster Mount Leinster | Ireland, Leinster Carlow | mountain elevation 796m | N 52° 37′ 6'' | W 6° 46′ 48'' |
| 4289 | Slieve League Sliabh Liag,Slieve Leag,Slieve League,Slieve Liag | Ireland, Ulster Donegal | mountain elevation 601m | N 54° 39′ 3'' | W 8° 41′ 38'' |
| 4290 | Lambay Island Lambay Island,Reachrainn | Ireland, Leinster Dublin | island | N 53° 29′ 37'' | W 6° 1′ 18'' |
| 4291 | Knocknarea Cnoc na Riabh,Knocknarea,Noknari,jbl knwknarya,nokunarea,Нокнари,جبل كنوكناريا,ノクナレア | Ireland, Connacht County Sligo | mountain elevation 327m | N 54° 15′ 30'' | W 8° 34′ 29'' |
| 4292 | Knocknadobar Cnoc na dTobar,Knocknadobar,Knocknadober,jbl knwknadwbar,جبل كنوكنادوبار | Ireland, Munster Co Kerry | mountain elevation 690m | N 51° 59′ 35'' | W 10° 10′ 30'' |
| 4293 | Cnoc Mhaoldomhnaigh Cnoc Mhaoldomhnaigh,Knockmealdown,Knockmealdown Mountains,Sleibhte Chnoc Mhaoldomhnaigh,Sléibhte Chn... | Ireland, | mountains elevation 792m | N 52° 13′ 40'' | W 7° 54′ 55'' |
| 4294 | Knockboy Knockboy | Ireland, Munster Co Kerry | mountain elevation 706m | N 51° 48′ 51'' | W 9° 26′ 39'' |
| 4295 | Cnoc an Fhomhair Cnoc an Fhomhair,Cnoc an Iuir,Cnoc an Iúir,Knockanore,Knockanore Mountain,Knockenore | Ireland, Munster Co Kerry | hill elevation 266m | N 52° 31′ 26'' | W 9° 36′ 23'' |
| 4296 | Knockalongy Cnoc na Loinge,Knockalongy | Ireland, Connacht County Sligo | mountain elevation 544m | N 54° 11′ 39'' | W 8° 45′ 37'' |
| 4297 | Kippure Cipiur,Cipiure,Cipiúre,Kippure | Ireland, Leinster County Wicklow | mountain elevation 757m | N 53° 10′ 41'' | W 6° 19′ 55'' |
| 4298 | Kerry Head Ceann Chiarrai,Kerry Head | Ireland, Munster Co Kerry | cape | N 52° 24′ 59'' | W 9° 57′ 5'' |
| 4299 | Keeragh Islands Keeragh Islands,Keeroes,Keragh Islands | Ireland, Leinster County Wexford | islands | N 52° 11′ 42'' | W 6° 43′ 54'' |
| 4300 | Irelands Eye Inis Mac Neasain,Inis Mac Neasáin,Ireland's Eye,Irelands Eye | Ireland, Leinster Dublin | island | N 53° 24′ 24'' | W 6° 3′ 45'' |
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