| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
3351  | Urtaiin Dugang Urtaiin Dugang,Urtuin dugang | Mongolia, Selenge Province | populated place | N 48° 56′ 0'' | E 104° 30′ 0'' |
3352  | Ürlen Tolgoy Urlen Tolgoy,Wu-erh-leng-t'ao-le-kai,Wu-erh-leng-t’ao-le-kai,Ürlen Tolgoy | Mongolia, East Aimak | hill | N 46° 43′ 0'' | E 118° 45′ 0'' |
| 3353 | Urhuniy Hoytu Nuruu Urhuniy Hoytu Nuruu | Mongolia, Central Aimak | mountains | N 48° 19′ 0'' | E 107° 16′ 0'' |
| 3354 | Uran Togoo Upan Togoo Uul,Uran Togoo | Mongolia, Bulgan | mountain | N 49° 10′ 0'' | E 102° 39′ 0'' |
| 3355 | Uragiin Dugang Uragiin Dugang,Uragyyn dugang | Mongolia, Bulgan | populated place | N 49° 40′ 0'' | E 103° 13′ 0'' |
| 3356 | Unegete Uul Unegete Uul | Mongolia, East Aimak | mountain | N 48° 41′ 0'' | E 115° 39′ 0'' |
| 3357 | Ülgey Haldzan Hüryee Ulgey Haldzan Huryee,Ulgey Khaltszan Khure,Ülgey Haldzan Hüryee | Mongolia, Arkhangai Province | populated place | N 47° 55′ 0'' | E 101° 49′ 0'' |
3358  | Uldza K'uei-t'un Ho,K’uei-t’un Ho,Reka Ul'dza,Reka Ul'tsza,Reka Ul’dza,Reka Ul’tsza,Uldsa,Uldz,Uldz Gol,Ul... | MN,RU | stream | N 49° 56′ 0'' | E 115° 31′ 0'' |
| 3359 | Ulaha Ulaha,Ulakha | Mongolia, Central Aimak | populated place | N 48° 10′ 0'' | E 105° 30′ 0'' |
| 3360 | Ulaan Tsav Uul Ulaan Tsav Uul,Wu-lan-ch'a-pu-wu-la,Wu-lan-ch’a-pu-wu-la | Mongolia, | hill | N 44° 48′ 0'' | E 111° 38′ 0'' |
| 3361 | Ulaan Tsav Ulaan Tsav,Wu-lan-ch'a-pu,Wu-lan-ch’a-pu | Mongolia, East Gobi Aymag | hill | N 42° 39′ 0'' | E 109° 57′ 0'' |
| 3362 | Ulaan Tologoy Uul Ulaan Tologoy Uul | Mongolia, East Aimak | mountain | N 47° 51′ 0'' | E 115° 17′ 0'' |
| 3363 | Ulaan Tologoy Hural Ulaan Tologoy Hural,Ulan tologoy Khural | Mongolia, Central Aimak | populated place | N 47° 58′ 0'' | E 105° 3′ 0'' |
| 3364 | Ulaan Tolgoy Ulaan Tolgoy,Wu-lan-t'ao-le-kai,Wu-lan-t’ao-le-kai | Mongolia, East Aimak | mountain | N 46° 45′ 0'' | E 119° 4′ 0'' |
| 3365 | Ulaan Tolgoy Ulaan Tolgoy,Wu-lan-t'ao-le-kai,Wu-lan-t’ao-le-kai | Mongolia, East Aimak | hill | N 48° 15′ 0'' | E 115° 45′ 0'' |
| 3366 | Ulaan Tolgoy Ulaan Tolgoy,Wu-lan-t'ao-le-kai,Wu-lan-t’ao-le-kai | Mongolia, East Aimak | hill | N 47° 20′ 0'' | E 119° 26′ 0'' |
| 3367 | Ulaan Shabatu Davaa Nuruu Ulaan Shabatu Davaa Nuruu | Mongolia, Central Aimak | mountains | N 48° 39′ 0'' | E 107° 6′ 0'' |
| 3368 | Ulaan Öndör Gora Ulan undur,Ulaan Ondor,Ulaan Öndör | Mongolia, | mountain | N 48° 48′ 0'' | E 112° 15′ 0'' |
| 3369 | Ulaan Nuurïn Els Peski Ulan-nur,Ulaan Nuurin Els,Ulaan Nuurïn Els | Mongolia, | sand area | N 44° 41′ 0'' | E 103° 37′ 0'' |
| 3370 | Ulaanhan Uul Ulaanhan Uul | Mongolia, East Aimak | mountain | N 50° 8′ 0'' | E 114° 47′ 0'' |
| 3371 | Ulaan Ganjir Hiid Ulaan Ganjir Hiid,Ulan Ganchzhur Khid | Mongolia, Hentiy | populated place | N 47° 37′ 0'' | E 110° 50′ 0'' |
| 3372 | Ulaan Del Ulaan Del,Wu-lan-te-le | Mongolia, East Gobi Aymag | hill | N 42° 28′ 0'' | E 109° 8′ 0'' |
| 3373 | Uhiduud Uhiduud,Ukhidud | Mongolia, Selenge Province | populated place | N 48° 40′ 0'' | E 107° 25′ 0'' |
| 3374 | Üherteyn Dabaa Pereval Ukhertuin-daba,Uherteyn Dabaa,Üherteyn Dabaa | Mongolia, East Aimak | pass | N 48° 57′ 0'' | E 113° 29′ 0'' |
| 3375 | Uhaa Tolgoy Uul Gora Ukha tologoy,Uhaa Tolgoy Uul | Mongolia, Sühbaatar | mountain | N 45° 22′ 0'' | E 114° 22′ 0'' |
| 3376 | Uhaa Shuluu Uul Uhaa Shuluu Uul | Mongolia, Central Aimak | mountain | N 46° 48′ 0'' | E 106° 30′ 0'' |
| 3377 | Uhaa Shar Uul Uhaa Shar Uul | Mongolia, East Aimak | mountain | N 49° 28′ 0'' | E 113° 30′ 0'' |
| 3378 | Ugtaaliin Dugang Ugtaaliin Dugang,Ukhtalyyn dugang | Mongolia, Central Aimak | populated place | N 48° 23′ 0'' | E 105° 48′ 0'' |
| 3379 | Ügetseg Uula Gora Ugutsegula,Ugetseg Uula,Ügetseg Uula | Mongolia, Övörhangay | mountain | N 46° 5′ 0'' | E 104° 10′ 0'' |
| 3380 | Ugetseg Uul Ugetseg Uul | Mongolia, Övörhangay | mountain | N 46° 5′ 0'' | E 104° 10′ 0'' |
| 3381 | Ugaldzïn Har Ugaldzin Har,Ugaldzïn Har,Wu-ka-le-chin-hai-erh | Mongolia, Ömnögovĭ | hill | N 41° 49′ 0'' | E 103° 50′ 0'' |
| 3382 | Üdzüür Tolgoy Udzuur Tolgoy,Wu-chu-erh-t'ao-le-kai,Wu-chu-erh-t’ao-le-kai,Üdzüür Tolgoy | Mongolia, Sühbaatar | mountain | N 45° 46′ 0'' | E 116° 15′ 0'' |
| 3383 | Türüügiin Horshoo Turugyyn khorsho,Turuugiin Horshoo,Türüügiin Horshoo | Mongolia, Khövsgöl Province | populated place | N 51° 17′ 0'' | E 100° 47′ 0'' |
| 3384 | Tunheliyn Huhu Baitsa Nuruu Tunheliyn Huhu Baitsa Nuruu | Mongolia, Selenge Province | mountains | N 48° 50′ 0'' | E 107° 8′ 0'' |
| 3385 | Tünhel Tuenhel,Tunkhehl,Tünhel,Тунхэл | Mongolia, Selenge Province | populated place | N 48° 38′ 37'' | E 106° 45′ 35'' |
| 3386 | Tüdeb Guunii Hüryee Tudeb Guunii Huryee,Tudub Guni Khure,Tüdeb Guunii Hüryee | Mongolia, Bulgan | populated place | N 47° 41′ 0'' | E 103° 53′ 0'' |
| 3387 | Tsuvraagiyn Tsagaan Tolgoy Ch'u-pu-la-ken-ch'a-kan-t'ao-le-kai,Ch’u-pu-la-ken-ch’a-kan-t’ao-le-kai,Tsuvraagiyn Tsagaan Tolgoy | Mongolia, East Aimak | hill | N 46° 20′ 0'' | E 116° 35′ 0'' |
| 3388 | Tsovgal Uul Tsovgal Uul | Mongolia, Bayanhongor | mountain | N 44° 50′ 0'' | E 100° 41′ 0'' |
| 3389 | Tsog Uula Tsog Uula | Mongolia, East Aimak | mountain | N 46° 42′ 0'' | E 115° 8′ 0'' |
| 3390 | Tsogt Tolgoy Ch'ao-ko-t'e-t-aole-kai,Ch’ao-ko-t’e-t-aole-kai,Tsogt Tolgoy | Mongolia, East Gobi Aymag | hill | N 42° 28′ 0'' | E 109° 14′ 0'' |
| 3391 | Tsogto Hayrhanii Dugang Tsogto Hayrhanii Dugang,Tsogtu Khayrkhani dugang | Mongolia, Arkhangai Province | populated place | N 47° 25′ 0'' | E 100° 15′ 0'' |
| 3392 | Tsetseren Uul Tsetseren Uul | Mongolia, East Gobi Aymag | mountains | N 44° 10′ 0'' | E 110° 20′ 0'' |
| 3393 | Tsengelegiin Dugang Tsengelegiin Dugang,Tsengelegyyn dugang | Mongolia, Bulgan | populated place | N 48° 56′ 0'' | E 104° 20′ 0'' |
| 3394 | Tsazahariyn Davaa Tsazahariyn Davaa | Mongolia, Central Aimak | pass | N 48° 52′ 0'' | E 108° 49′ 0'' |
| 3395 | Tsaydam Uul Gora Tsaydamyn,Tsaydam Uul | Mongolia, Sühbaatar | mountain | N 45° 38′ 0'' | E 114° 49′ 0'' |
| 3396 | Tsavïn Höndiy Ch'a-pin-hun-ti,Ch’a-pin-hun-ti,Tsavin Hondiy,Tsavïn Höndiy | Mongolia, Sühbaatar | valley | N 44° 55′ 0'' | E 112° 38′ 0'' |
| 3397 | Tsavchirïn Tolgoy Ch'a-pu-ch'i-jen-t'ao-le-kai,Ch’a-pu-ch’i-jen-t’ao-le-kai,Tsavchirin Tolgoy,Tsavchirïn Tolgoy | Mongolia, Sühbaatar | mountain | N 45° 3′ 0'' | E 114° 13′ 0'' |
| 3398 | Tsartsaiin Hiid Tsartsaiin Hiid,Tsartsin Khid | Mongolia, East Gobi Aymag | populated place | N 45° 30′ 0'' | E 111° 5′ 0'' |
| 3399 | Tsarïn Hyar Ch'a-jen-hai-erh,Ch’a-jen-hai-erh,Tsarin Hyar,Tsarïn Hyar | Mongolia, East Gobi Aymag | hill | N 42° 39′ 0'' | E 110° 5′ 0'' |
| 3400 | Tsambaiin Hiid Tsambaiin Hiid,Tsambayn Khid | Mongolia, Bulgan | populated place | N 49° 39′ 0'' | E 102° 54′ 0'' |
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