| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
4851  | Östlich Raron  Oestlich Raron,Raron Oestlich | Switzerland, Valais Raron District > Bettmeralp | administrative division | N 46° 23′ 7'' | E 8° 3′ 35'' |
| 4852 | Ormont-Dessus CH5411,Ormont-Dessus | Switzerland, Vaud Aigle District > Ormont-Dessus | third-order administrative division population 1,433 | N 46° 20′ 48'' | E 7° 9′ 46'' |
| 4853 | Ormont-Dessous CH5410,Ormont-Dessous | Switzerland, Vaud Aigle District > Ormont-Dessous | third-order administrative division population 1,142 | N 46° 22′ 35'' | E 7° 4′ 12'' |
4854  | Oppens | Switzerland, Vaud Gros-de-Vaud District > Oppens | populated place population 179 | N 46° 42′ 50'' | E 6° 41′ 30'' |
| 4855 | Onnens Onnens | Switzerland, Fribourg Sarine District > La Brillaz | populated place | N 46° 46′ 28'' | E 7° 2′ 13'' |
| 4856 | Ollon CH5409,Ollon | Switzerland, Vaud Aigle District > Ollon | third-order administrative division population 7,555 | N 46° 18′ 24'' | E 7° 2′ 57'' |
| 4857 | Oey Oey | Switzerland, Bern Frutigen-Niedersimmental District > Erlenbach im Simmental | populated place | N 46° 39′ 33'' | E 7° 34′ 36'' |
| 4858 | Oberterzen | Switzerland, Saint Gallen Sarganserland > Quarten | populated place | N 47° 6′ 8'' | E 9° 15′ 33'' |
| 4859 | Ober-Stammheim | Switzerland, Zurich Andelfingen District > Ober-Stammheim | historical third-order administrative division population 1,174 | N 47° 38′ 0'' | E 8° 47′ 36'' |
4860  | Ober Simmental Ober Simmental,Ober Simmenthal | Switzerland, Bern | valley | N 46° 33′ 0'' | E 7° 24′ 0'' |
| 4861 | Obersiggenthal CH4038 | Switzerland, Aargau Bezirk Baden > Obersiggenthal | third-order administrative division population 8,628 | N 47° 29′ 14'' | E 8° 17′ 37'' |
| 4862 | Oberrickenbach Oberrickenbach | Switzerland, Nidwalden Nidwalden > Wolfenschiessen | populated place | N 46° 53′ 15'' | E 8° 25′ 2'' |
| 4863 | Oberhelfenschwil | Switzerland, Saint Gallen Wahlkreis Toggenburg > Neckertal | populated place population 1,318 | N 47° 21′ 24'' | E 9° 6′ 38'' |
| 4864 | Oberengstringen | Switzerland, Zurich Bezirk Dietikon > Oberengstringen | populated place population 5,805 | N 47° 24′ 30'' | E 8° 27′ 54'' |
| 4865 | Ober-Buch | Switzerland, Zurich Andelfingen District > Buch am Irchel | populated place population 258 | N 47° 32′ 53'' | E 8° 37′ 20'' |
| 4866 | Oberbazenheid Ober-Basenheid,Ober-Bazenheid,Oberbazenheid | Switzerland, Saint Gallen Wahlkreis Toggenburg > Kirchberg (SG) | populated place | N 47° 24′ 32'' | E 9° 3′ 48'' |
| 4867 | Niederuzwil | Switzerland, Saint Gallen Wahlkreis Wil > Uzwil | populated place | N 47° 26′ 47'' | E 9° 8′ 29'' |
| 4868 | Nieder Surenen Alp Nieder Surenen Alm,Nieder Surenen Alp,Niedersurrenen | Switzerland, Obwalden Obwalden > Engelberg | populated place | N 46° 47′ 0'' | E 8° 29′ 0'' |
| 4869 | Niederscherli Niederscherli | Switzerland, Bern Bern-Mittelland District > Köniz | populated place | N 46° 53′ 6'' | E 7° 23′ 37'' |
| 4870 | Niederhelfenschwil | Switzerland, Saint Gallen Wahlkreis Wil > Niederhelfenschwil | populated place population 2,668, elevation 580m | N 47° 28′ 29'' | E 9° 11′ 7'' |
| 4871 | Niedergesteln Castillio Inferior,Niedergestelen,Niedergesteln,xia ge si te en,下格斯特恩 | Switzerland, Valais Raron District > Niedergesteln | populated place population 615 | N 46° 18′ 44'' | E 7° 47′ 1'' |
| 4872 | Neuenegg CH0670,Neueneck | Switzerland, Bern Bern-Mittelland District > Neuenegg | third-order administrative division population 5,606 | N 46° 53′ 39'' | E 7° 18′ 10'' |
| 4873 | Nendaz CH6024,Nendaz | Switzerland, Valais Conthey > Nendaz | third-order administrative division population 6,737 | N 46° 11′ 0'' | E 7° 18′ 0'' |
| 4874 | Val Müstair Muenstertal,Munsterthal,Münstertal,Münsterthal,Val Mustair,Val Müstair | Switzerland, Grisons | valley | N 46° 36′ 20'' | E 10° 23′ 24'' |
| 4875 | Murg | Switzerland, Saint Gallen Sarganserland > Quarten | populated place | N 47° 6′ 46'' | E 9° 12′ 55'' |
| 4876 | Piz Muraigl Mont Murail,Piz Muraigl,Piz Murail | Switzerland, Grisons Maloja > Samedan | mountain | N 46° 31′ 0'' | E 9° 55′ 0'' |
| 4877 | Mühlau Muhlau,Mühlau | Switzerland, Aargau Bezirk Muri > Mühlau | populated place population 967 | N 47° 13′ 44'' | E 8° 23′ 20'' |
| 4878 | Mosogno Mosogno | Switzerland, Ticino Locarno District > Onsernone | populated place population 67 | N 46° 11′ 55'' | E 8° 38′ 29'' |
| 4879 | Montricher Montricher | Switzerland, Vaud Morges District > Montricher | populated place population 761 | N 46° 35′ 58'' | E 6° 22′ 36'' |
| 4880 | Mont-la-Ville meng la wei er,蒙拉维尔 | Switzerland, Vaud Morges District > Mont-la-Ville | populated place population 342 | N 46° 38′ 47'' | E 6° 24′ 32'' |
| 4881 | Monte Carasso Monte Carasso | Switzerland, Ticino Bellinzona District > Monte Carasso | historical third-order administrative division population 2,832 | N 46° 12′ 16'' | E 8° 58′ 26'' |
| 4882 | Mönchaltorf | Switzerland, Zurich Bezirk Uster > Mönchaltorf | populated place population 2,779 | N 47° 18′ 34'' | E 8° 43′ 13'' |
| 4883 | Mumpé Tujetsch Mompe-Tujetsch,Mompetavetsch,Mompé-Tujetsch,Mumpe Tujetsch,Mumpé Tujetsch | Switzerland, Grisons Surselva > Disentis/Mustér | populated place | N 46° 41′ 0'' | E 8° 49′ 30'' |
| 4884 | Mezzovico | Switzerland, Ticino Lugano District > Mezzovico-Vira | populated place | N 46° 5′ 23'' | E 8° 55′ 3'' |
| 4885 | Metzerlen Metzerlen | Switzerland, Solothurn Bezirk Dorneck > Metzerlen-Mariastein | populated place | N 47° 27′ 52'' | E 7° 28′ 2'' |
| 4886 | Mettlen | Switzerland, Thurgau Weinfelden District > Bussnang | populated place | N 47° 31′ 50'' | E 9° 7′ 23'' |
| 4887 | Mesocco CH3822 | Switzerland, Grisons Moesa > Mesocco | third-order administrative division population 1,344 | N 46° 23′ 29'' | E 9° 14′ 14'' |
| 4888 | Melano CH5197,Melano | Switzerland, Ticino Lugano District > Melano | historical third-order administrative division population 1,437 | N 45° 55′ 12'' | E 8° 59′ 33'' |
| 4889 | Meiental Meiental,Meienthal | Switzerland, Uri | valley | N 46° 44′ 0'' | E 8° 35′ 0'' |
| 4890 | Medergen Madrigen,Medergen,Mädrigen | Switzerland, Grisons Plessur > Arosa | populated place | N 46° 48′ 14'' | E 9° 44′ 23'' |
| 4891 | Pizzo Medaro Il Madone,Monte Madone,Pizzo Medaro | Switzerland, Ticino Locarno District > Onsernone | mountain elevation 2551m | N 46° 13′ 58'' | E 8° 28′ 6'' |
| 4892 | Val di March March,Val di March | Switzerland, Schwyz | valley | N 46° 12′ 27'' | E 9° 7′ 49'' |
| 4893 | Maracon Maracon | Switzerland, Vaud Lavaux-Oron District > Maracon | populated place population 582 | N 46° 33′ 0'' | E 6° 52′ 19'' |
| 4894 | Mannens Mannens-Grandsivaz | Switzerland, Fribourg Broye District > Montagny (FR) | populated place | N 46° 47′ 37'' | E 6° 58′ 8'' |
4895  | Manas Manas | Switzerland, Grisons Engiadina Bassa/Val Müstair > Valsot | locality | N 46° 50′ 38'' | E 10° 21′ 56'' |
| 4896 | Malmigiuer Malmigiuer,Malmigiur,Malmiguier | Switzerland, Grisons Albula Region > Surses | populated place | N 46° 34′ 50'' | E 9° 34′ 5'' |
| 4897 | Maisprach Maisprach | Switzerland, Basel-Landschaft Bezirk Sissach > Maisprach | populated place population 933 | N 47° 31′ 28'' | E 7° 50′ 43'' |
| 4898 | Lurtigen Lurtigen | Switzerland, Fribourg See > Murten/Morat | populated place population 180 | N 46° 55′ 42'' | E 7° 10′ 23'' |
| 4899 | Lungnezertal Lugnez,Lungnezertal,Lungnezerthal | Switzerland, Grisons | valley | N 46° 42′ 0'' | E 9° 10′ 0'' |
| 4900 | Ludiano Ludiano | Switzerland, Ticino Blenio District > Serravalle | populated place population 307 | N 46° 25′ 11'' | E 8° 58′ 15'' |
by