| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
1601  | Untererlinsbach  Erlinsbach,Erlinsbach SO,Untererlinsbach | Switzerland, Solothurn Bezirk Gösgen > Erlinsbach (SO) | populated place | N 47° 24′ 0'' | E 8° 0′ 0'' |
| 1602 | Unterbäch xia bei he,下貝赫 | Switzerland, Valais Raron District > Unterbäch | populated place population 430 | N 46° 17′ 3'' | E 7° 47′ 57'' |
| 1603 | Ulrichen Ulrichen | Switzerland, Valais Goms District > Obergoms | populated place population 246, elevation 1346m | N 46° 30′ 19'' | E 8° 18′ 34'' |
| 1604 | Ufhusen Ufhusen | Switzerland, Lucerne Willisau > Ufhusen | populated place population 882 | N 47° 7′ 1'' | E 7° 53′ 45'' |
| 1605 | Uesslingen Uesslingen | Switzerland, Thurgau Bezirk Frauenfeld > Uesslingen-Buch | populated place | N 47° 34′ 53'' | E 8° 49′ 51'' |
| 1606 | Ueberstorf Uberstorf,Ueberstorf,yu bo shi tuo fu,Überstorf,于伯施托夫 | Switzerland, Fribourg Sense District > Ueberstorf | populated place population 2,133 | N 46° 51′ 57'' | E 7° 18′ 35'' |
| 1607 | Udligenswil Udligenswil | Switzerland, Lucerne Lucerne-Land District > Udligenswil | populated place population 2,252 | N 47° 5′ 24'' | E 8° 24′ 12'' |
| 1608 | Twann Douanne,Tvan,Тван | Switzerland, Bern Biel/Bienne District > Twann-Tüscherz | populated place population 845 | N 47° 5′ 39'' | E 7° 9′ 25'' |
| 1609 | Tschiertschen Chirchen,Tschiertschen,Чирчен | Switzerland, Grisons Plessur > Chur | populated place population 220 | N 46° 49′ 3'' | E 9° 36′ 22'' |
| 1610 | Trübbach | Switzerland, Saint Gallen Wahlkreis Werdenberg > Wartau | populated place | N 47° 4′ 24'' | E 9° 28′ 41'' |
| 1611 | Troistorrents te lu wa tuo lang,特魯瓦托朗 | Switzerland, Valais Monthey > Troistorrents | populated place population 3,873 | N 46° 13′ 44'' | E 6° 54′ 57'' |
| 1612 | Trin Trin,Trins,Trins Dorf | Switzerland, Grisons Imboden > Trin | populated place | N 46° 49′ 42'' | E 9° 21′ 41'' |
| 1613 | Trient Trient,Trient VS,Trient i Sveits,te li an,特里安 | Switzerland, Valais Martigny District > Trient | populated place population 137 | N 46° 3′ 28'' | E 6° 59′ 38'' |
| 1614 | Treyvaux Treyvaux,Treyvaux FR,te lei wo,特雷沃 | Switzerland, Fribourg Sarine District > Treyvaux | populated place population 1,349 | N 46° 43′ 40'' | E 7° 8′ 15'' |
| 1615 | Trey | Switzerland, Vaud Broye-Vully District > Trey | populated place population 207 | N 46° 46′ 12'' | E 6° 55′ 35'' |
| 1616 | Trans Trans,Traun | Switzerland, Grisons Viamala > Domleschg | populated place population 51 | N 46° 45′ 53'' | E 9° 27′ 40'' |
| 1617 | Torre Torre | Switzerland, Ticino Blenio District > Blenio | populated place population 279 | N 46° 29′ 20'' | E 8° 57′ 11'' |
| 1618 | Tomils Tomils,Tumegl,Tumegl/Tomils | Switzerland, Grisons Viamala > Domleschg | populated place | N 46° 45′ 42'' | E 9° 26′ 32'' |
1619  | Tödi Toedi,Tödi,ٹوڈی,ტედი | Switzerland, Grisons Surselva > Disentis/Mustér | mountains elevation 3614m | N 46° 48′ 41'' | E 8° 55′ 0'' |
| 1620 | Tobel | Switzerland, Thurgau Bezirk Münchwilen > Tobel-Tägerschen | populated place | N 47° 30′ 54'' | E 9° 2′ 0'' |
| 1621 | Titterten Titterten,di te teng,Титтертен,蒂特滕 | Switzerland, Basel-Landschaft Waldenburg > Titterten | populated place population 427 | N 47° 24′ 8'' | E 7° 42′ 57'' |
| 1622 | Titlis Monte Titlis,Titlis,Titlis Dagi,Titlis Dağı,jbl tytlys,khea thi thlis,tie li shi feng,titeulliseu,ti... | Switzerland, Obwalden Obwalden > Engelberg | mountain elevation 3238m | N 46° 46′ 19'' | E 8° 26′ 16'' |
1623  | Tilsiterland | Switzerland, | region | N 47° 36′ 0'' | E 9° 0′ 0'' |
| 1624 | Tiefencastel Castellum Impitinis,Casti,Tiefencastel,Tifenkastel',di fen ka si te er,Тифенкастель,蒂芬卡斯特爾 | Switzerland, Grisons Albula Region > Albula/Alvra | seat of a second-order administrative division population 244 | N 46° 39′ 36'' | E 9° 34′ 43'' |
| 1625 | Thayngen Tajngen,ta ying gen,Тайнген,塔英根 | Switzerland, Schaffhausen Bezirk Reiat > Thayngen | seat of a second-order administrative division population 4,120, elevation 437m | N 47° 44′ 49'' | E 8° 42′ 26'' |
| 1626 | Thalheim Thalheim,Thalheim an der Thur | Switzerland, Zurich Andelfingen District > Thalheim an der Thur | populated place population 322 | N 47° 34′ 41'' | E 8° 45′ 4'' |
| 1627 | Thalheim Thalheim | Switzerland, Aargau Bezirk Brugg > Thalheim | populated place population 805 | N 47° 26′ 7'' | E 8° 6′ 1'' |
| 1628 | Termen Termen,Thermen,te men,特門 | Switzerland, Valais Brig District > Termen | populated place population 793 | N 46° 19′ 36'' | E 8° 1′ 15'' |
| 1629 | Tegna Tegna,tai ni ya,泰尼亞 | Switzerland, Ticino Locarno District > Terre di Pedemonte | populated place | N 46° 11′ 12'' | E 8° 44′ 42'' |
| 1630 | Tecknau Tecknau,Teknau,te ke nao,Текнау,特克瑙 | Switzerland, Basel-Landschaft Bezirk Sissach > Tecknau | populated place population 856 | N 47° 26′ 56'' | E 7° 53′ 5'' |
| 1631 | Tavanasa Tavanasa | Switzerland, Grisons Surselva > Breil/Brigels | populated place | N 46° 45′ 16'' | E 9° 3′ 44'' |
| 1632 | Tartar Tartar | Switzerland, Grisons Viamala > Cazis | populated place population 216 | N 46° 43′ 3'' | E 9° 25′ 6'' |
| 1633 | Tarasp Tarasp,ta la si pu,Тарасп,塔拉斯普 | Switzerland, Grisons Engiadina Bassa/Val Müstair > Scuol | populated place population 295 | N 46° 46′ 37'' | E 10° 15′ 30'' |
| 1634 | Tafers Tafers,Tavel,ta fei er,塔費爾 | Switzerland, Fribourg Sense District > Tafers | seat of a second-order administrative division population 2,833 | N 46° 48′ 53'' | E 7° 13′ 6'' |
| 1635 | Süs Sues,Sus,Susch,Süs | Switzerland, Grisons Engiadina Bassa/Val Müstair > Zernez | populated place | N 46° 44′ 59'' | E 10° 4′ 45'' |
| 1636 | Surava Surava,su la wa,Сурава,蘇拉瓦 | Switzerland, Grisons Albula Region > Albula/Alvra | populated place population 198 | N 46° 39′ 58'' | E 9° 36′ 46'' |
| 1637 | Stierva Stierva,Stuervis,Stürvis | Switzerland, Grisons Albula Region > Albula/Alvra | populated place population 142 | N 46° 39′ 49'' | E 9° 32′ 32'' |
| 1638 | Stoos Stoos,Stoos SZ | Switzerland, Schwyz Schwyz District > Morschach | populated place | N 46° 58′ 36'' | E 8° 39′ 47'' |
| 1639 | Stilli Shtilli,Штилли | Switzerland, Aargau Bezirk Brugg > Villigen | populated place population 440 | N 47° 31′ 1'' | E 8° 13′ 53'' |
| 1640 | Steinerberg Steinerberg | Switzerland, Schwyz Schwyz District > Steinerberg | populated place population 898 | N 47° 3′ 17'' | E 8° 35′ 9'' |
| 1641 | Stein | Switzerland, Aargau Bezirk Rheinfelden > Stein | populated place population 2,504 | N 47° 32′ 38'' | E 7° 57′ 9'' |
| 1642 | Stechelberg Stechelberg,shutehheruberuku,シュテッヘルベルク | Switzerland, Bern Interlaken-Oberhasli District > Lauterbrunnen | populated place population 255 | N 46° 32′ 35'' | E 7° 54′ 5'' |
| 1643 | Staufen Staufen | Switzerland, Aargau Bezirk Lenzburg > Staufen | populated place population 2,424 | N 47° 22′ 55'' | E 8° 10′ 0'' |
| 1644 | Stampa Stampa,Stanpa,Стампа | Switzerland, Grisons Maloja > Bregaglia | populated place population 588 | N 46° 20′ 34'' | E 9° 35′ 26'' |
| 1645 | Stallikon Shtallikon,si ta li kong,Шталликон,斯塔利孔 | Switzerland, Zurich Bezirk Affoltern > Stallikon | populated place population 456 | N 47° 19′ 32'' | E 8° 29′ 22'' |
| 1646 | Stadel Stadel,Stadel b. Niederglatt | Switzerland, Zurich Dielsdorf > Stadel | populated place population 875 | N 47° 31′ 45'' | E 8° 27′ 48'' |
| 1647 | Splügen Spleja,Spligia,Spluegen,Spluga,Splügen | Switzerland, Grisons Viamala > Rheinwald | populated place population 400 | N 46° 33′ 6'' | E 9° 19′ 19'' |
| 1648 | Spiringen Shpiringen,Spiringen,sprngn,Шпиринген,سپرنگن | Switzerland, Uri Uri > Spiringen | populated place population 973 | N 46° 52′ 21'' | E 8° 43′ 48'' |
| 1649 | Sornetan Sornetan,suo er nei tan,Сорнетан,索爾內坦 | Switzerland, Bern Bernese Jura > Petit-Val | populated place population 116 | N 47° 16′ 27'' | E 7° 12′ 59'' |
| 1650 | Sörenberg Sorenberg,Sörenberg | Switzerland, Lucerne Entlebuch > Flühli | populated place | N 46° 49′ 19'' | E 8° 2′ 14'' |
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