| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
2051  | Aguytayn Jisa Aguytayn Jisa,Aguytuin chzhisa,Aguytuyn chzhisa | Mongolia, Central Aimak | populated place | N 47° 3′ 0'' | E 107° 39′ 0'' |
| 2052 | Aguy Süme Hiid Aguy Sume Hiid,Aguy Süme Hiid,Aguy sume khid,Aguy-sume | Mongolia, Ömnögovĭ | populated place | N 42° 35′ 0'' | E 107° 48′ 0'' |
2053  | Agĭt Tolgoy A-chi-t'e-t'ao-le-kai,A-chi-t’e-t’ao-le-kai,Agit Tolgoy,Agĭt Tolgoy | Mongolia, Sühbaatar | mountain | N 45° 3′ 0'' | E 114° 8′ 0'' |
| 2054 | Abdartayn Süme Abdartayn Sum,Abdartayn Süm,Abdartoyn Sume,Abdartyn sume,Abdartyyn sume,Abdartöyn Sume | Mongolia, Sühbaatar | populated place | N 46° 22′ 14'' | E 113° 35′ 8'' |
| 2055 | Abdarantaiin Hural Abdarantaiin Hural,Abdaranton Khural,Abdarantona Khural,Abdarantyn khural,Abdarantön Khural | Mongolia, East Gobi Aymag | populated place | N 44° 40′ 0'' | E 110° 30′ 0'' |
2056  | Abdaranta | Mongolia, Sühbaatar | area | N 46° 22′ 0'' | E 115° 53′ 0'' |
2057  | Agutsa Agats Gol,Agatsin Gol,Agatsïn Gol,Agtsaiin Gol,Agtsayn Gol,Agtsu'iin Gol,Agtsuin-gol,Agtsu’iin Gol,A... | Mongolia, | stream | N 49° 15′ 0'' | E 112° 2′ 0'' |
| 2058 | Damba Darajayn Hiid Damba Darajayn Hiid,Damba Darajayn Hiyd,Damba Daruzhain Khid,Damba daruzhayn khid | Mongolia, Ulaanbaatar | populated place | N 47° 59′ 0'' | E 106° 55′ 0'' |
| 2059 | Yöröögiin Haluun Arshaan Ioroogiin haluun arshaan,Iurugin-Khalun-Arshan,Iöröögiin haluun arshaan,Yoroogiin Haluun Arshaan,Yor... | Mongolia, Selenge Province | populated place | N 49° 2′ 0'' | E 107° 29′ 0'' |
| 2060 | Yöröögiin Altanii Gadzar Iurugin-Altanyy-Gatszar,Yoroogiin Altanii Gadzar,Yoroogiyn Altany Hodzav,Yöröögiin Altanii Gadzar,Yö... | Mongolia, Selenge Province | populated place | N 49° 18′ 0'' | E 107° 14′ 0'' |
| 2061 | Yöröö Den I-lo,Iro,Stanok Iuru-dyan,Yoroo Den,Yöröö Den | Mongolia, Selenge Province | populated place | N 49° 49′ 0'' | E 106° 30′ 0'' |
| 2062 | Yoliin Hural Iolain khural,Tolain Khural,Yoliin Hural | Mongolia, Ulaanbaatar | populated place | N 47° 50′ 0'' | E 107° 30′ 0'' |
| 2063 | Yihe Tünel Uula Gora Ikhe-tunel ula,Ih Tunel Uul,Ih Tünel Uul,Yihe Tunel Uula,Yihe Tünel Uula | Mongolia, Khövsgöl Province | mountain | N 49° 52′ 0'' | E 100° 48′ 0'' |
| 2064 | Yihe Tsahil Ikhe-Tsakhil,Ikhe-tzakhil,Yihe Tsahil | Mongolia, Darhan Uul | populated place | N 49° 25′ 0'' | E 106° 0′ 0'' |
| 2065 | Yihe Tashagay Nuur | Mongolia, East Aimak | lake | N 47° 21′ 0'' | E 118° 27′ 0'' |
| 2066 | Yihe Tag Dabaa Pereval Ikhetag-daba,Yihe Tag Dabaa | Mongolia, Khövsgöl Province | pass | N 51° 18′ 0'' | E 101° 4′ 0'' |
| 2067 | Yihe Shara Hada Gora Ikhe Shara Khada,Yihe Shara Hada | Mongolia, East Gobi Aymag | mountain | N 42° 31′ 0'' | E 108° 30′ 0'' |
| 2068 | Yihe Serteng Gora Ikhe-Serten,Ih Serten Uul,Yihe Serten,Yihe Serteng | Mongolia, Darhan Uul | mountain | N 49° 16′ 0'' | E 106° 10′ 0'' |
| 2069 | Yihe Nomogon Gora Ikhe-nomogon,Ikh Mongol,Yihe Nomogon,Их Монгол | Mongolia, Selenge Province | mountain elevation 1241m | N 49° 9′ 6'' | E 105° 44′ 6'' |
| 2070 | Yihe Jisa Hiid Ih-Jisa Hiyd,Ikhe chzhisa khid,Yihe Jisa Hiid | Mongolia, Middle Govĭ | populated place | N 45° 41′ 0'' | E 106° 55′ 0'' |
| 2071 | Yihe Hushuu Hüryee Ikhe-Khoshu-Khure,Ikhi-khoshu-khure,JKhi Khoshu Khure,Yihe Hushuu Huryee,Yihe Hushuu Hüryee | Mongolia, Bulgan | populated place | N 49° 19′ 0'' | E 102° 7′ 0'' |
| 2072 | Yihe Hujirtayn Hüryee Ih-Hujirtayn-Huree,Ih-Hujirtayn-Hüree,Ikhe Khuchzhirtuin Khure,Yihe Hujirtayn Huryee,Yihe Hujirtayn ... | Mongolia, Khövsgöl Province | populated place | N 48° 41′ 0'' | E 100° 10′ 0'' |
| 2073 | Yihe Dalay Nuur | Mongolia, East Aimak | lake | N 49° 55′ 0'' | E 114° 22′ 0'' |
| 2074 | Yihe Dabaa Pereval Ikhe daba,Yihe Dabaa | Mongolia, Central Aimak | pass | N 48° 49′ 0'' | E 108° 53′ 0'' |
| 2075 | Yihe Bayan Uula Gora Ikhe Bayan Ula,Gora Ikhge-bain Tsagan,Yihe Bayan Uula | Mongolia, Bayanhongor | mountain | N 44° 17′ 0'' | E 100° 30′ 0'' |
| 2076 | Yanchin Hiid Yanchin Hiid,Yunshiin Hiid,Yunshiyn Khid,Yunshyyn-Khid | Mongolia, Central Aimak | populated place | N 47° 13′ 0'' | E 108° 5′ 0'' |
| 2077 | Yamaatayn Ara | Mongolia, East Aimak | area | N 47° 12′ 0'' | E 116° 38′ 0'' |
| 2078 | Yalgasa Dabaa Pereval Yalgasu daba,Yalgasa Dabaa | Mongolia, Khövsgöl Province | pass | N 50° 11′ 0'' | E 101° 6′ 0'' |
| 2079 | Wang Nuur | Mongolia, East Aimak | lake | N 49° 46′ 0'' | E 114° 48′ 0'' |
| 2080 | Uylgan Dugang Dugang Tilgan,Dugang-uilgan,Ulygani Dugan,Uylgan Dugang | Mongolia, Khövsgöl Province | populated place | N 50° 32′ 0'' | E 101° 47′ 0'' |
| 2081 | Uylga Uilaga,Uilga,Uylga | Mongolia, Selenge Province | populated place | N 49° 50′ 0'' | E 107° 43′ 0'' |
| 2082 | Üydzen Örtöö Uydzen,Uydzen Ortoo,Uytszen Urto,Uytszen yurt,Üydzen,Üydzen Örtöö | Mongolia, Ömnögovĭ | populated place | N 44° 10′ 0'' | E 104° 30′ 0'' |
| 2083 | Üydzengiin Hural Uydzengiin Hural,Uytszengin Khural,Uytszengir Khural,Üydzengiin Hural | Mongolia, Bulgan | populated place | N 47° 48′ 0'' | E 103° 15′ 0'' |
| 2084 | Üür Gol  Reka Ure,Reka Uri,Reka Uure,Reka Üre,Reka Üüre,Ur-gol,Ure gol,Uri Ho,Uri gol,Uur,Uur Gol,Uure Gol,Wu... | Mongolia, Khövsgöl Province | stream | N 50° 46′ 0'' | E 101° 31′ 0'' |
| 2085 | Uuldzuur Ulaan Chū | Mongolia, East Aimak | area | N 47° 16′ 0'' | E 115° 27′ 0'' |
| 2086 | Uula Hural Ula Khural,Ula-Khora,Uli khural,Uula Hural | Mongolia, Middle Govĭ | populated place | N 45° 34′ 0'' | E 107° 41′ 0'' |
| 2087 | Uula Hiid Ula khid,Uula Hiid,Uula-Hiyd | Mongolia, East Gobi Aymag | populated place | N 44° 7′ 0'' | E 107° 59′ 0'' |
| 2088 | Üüdein Baruun Shiree | Mongolia, Sühbaatar | area | N 45° 32′ 0'' | E 113° 41′ 0'' |
| 2089 | Ute Nuur | Mongolia, East Aimak | lake | N 47° 21′ 0'' | E 114° 43′ 0'' |
| 2090 | Usto Gurban Borilji | Mongolia, Sühbaatar | area | N 46° 36′ 0'' | E 115° 53′ 0'' |
| 2091 | Usagiyn Gol Uul Usagiyn Gol Uul | Mongolia, Selenge Province | mountain elevation 1711m | N 50° 7′ 47'' | E 104° 52′ 23'' |
| 2092 | Urtsa Gora Ortsa,Ortsa Uul,Urtsa | Mongolia, Central Aimak | mountain | N 48° 35′ 0'' | E 107° 41′ 0'' |
| 2093 | Urta Shara Gora Urtu Shara,Urta Shara,Urta Shara Uula | Mongolia, East Gobi Aymag | mountain | N 42° 33′ 0'' | E 108° 17′ 0'' |
| 2094 | Urt Gurvantes | Mongolia, Ömnögovĭ | seat of a second-order administrative division | N 43° 13′ 56'' | E 101° 2′ 53'' |
| 2095 | Urd Tamir Gol Reka Urtu tamir,Tarugin gol,Uldzamil,Urd Tamir Gol,Urdu Tamir,Urida Tamiriin Gol,Urida tamir gol,Uru... | Mongolia, Arkhangai Province | stream | N 47° 50′ 0'' | E 101° 49′ 0'' |
| 2096 | Urani Nuur | Mongolia, East Aimak | lake | N 47° 45′ 0'' | E 115° 15′ 0'' |
| 2097 | Uol Nuur | Mongolia, Central Aimak | lake | N 48° 27′ 0'' | E 106° 16′ 0'' |
| 2098 | Unĭt Un't,Unit,Unĭt,Un’t,Уньт | Mongolia, Bulgan | populated place | N 49° 8′ 0'' | E 102° 49′ 0'' |
| 2099 | Üneseteyn Hiid Uneseteyn Hiid,Uneseteyn-Hiyd,Unisutuin Khid,Unuste,Üneseteyn Hiid,Üneseteyn-Hiyd | Mongolia, Middle Govĭ | populated place | N 45° 44′ 0'' | E 105° 11′ 0'' |
| 2100 | Unagad Uul Unagad Uul,Wu-na-ka-te-wu-la | Mongolia, East Aimak | mountain | N 46° 41′ 0'' | E 119° 12′ 0'' |
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