| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
4651  | Orgoyto Uul | Mongolia, East Aimak | mountain | N 49° 43′ 0'' | E 114° 41′ 0'' |
4652  | Örgön Bayangovi,Bayangovĭ,Bayangow' | Mongolia, Bayanhongor | seat of a second-order administrative division | N 44° 44′ 10'' | E 100° 23′ 28'' |
| 4653 | Onhodiin Öndör Uul | Mongolia, East Aimak | mountain | N 49° 11′ 0'' | E 113° 20′ 0'' |
4654  | Ongon Hudag Kolodets Ongon-khuduk,Ongon Hudag,Ongun Khuduk | Mongolia, East Gobi Aymag | well | N 45° 43′ 0'' | E 110° 0′ 0'' |
| 4655 | Ongon Els | Mongolia, Sühbaatar | sand area | N 45° 40′ 0'' | E 113° 0′ 0'' |
| 4656 | Ongon | Mongolia, Selenge Province | populated place | N 48° 55′ 0'' | E 105° 5′ 0'' |
| 4657 | Öngöljin Gol Ongoljin Gol,Ungul Zhun,Ungul chzhyn gol,Ungul-chzhin-gol,Öngöljin Gol | Mongolia, Hentiy | stream | N 49° 11′ 0'' | E 108° 33′ 0'' |
| 4658 | Öndör Uul | Mongolia, Arkhangai Province | mountain | N 47° 51′ 0'' | E 102° 18′ 0'' |
| 4659 | Öndör Ulaanii Hudag Kolodets Undur ulanyy khuduk,Ondor Ulaanii Hudag,Undur Ulanoy Khuduk,Öndör Ulaanii Hudag | Mongolia, Hentiy | well | N 47° 15′ 0'' | E 109° 1′ 0'' |
| 4660 | Öndör Bor | Mongolia, Selenge Province | mountain | N 49° 3′ 0'' | E 105° 13′ 0'' |
| 4661 | Pereval Ikhe-Saram Pereval Ikhe-Saram,Перевал Ихе-Сарам | Mongolia, Khövsgöl Province | pass | N 50° 29′ 33'' | E 102° 33′ 41'' |
| 4662 | Pereval Yeyneg | Mongolia, Bulgan | pass | N 50° 20′ 0'' | E 102° 50′ 0'' |
| 4663 | Tsagan-Aral Cagan-Aral,Tsagan-Aral,Цаган-Арал | Mongolia, Selenge Province | abandoned populated place | N 50° 21′ 14'' | E 106° 3′ 3'' |
| 4664 | Yümt Uul Yumt Uul | Mongolia, Govi-Altai Province | mountain | N 44° 31′ 0'' | E 97° 13′ 0'' |
| 4665 | Yihe Hudag Ih Hudag,Ikhe khuduk,Yihe Hudag | Mongolia, Dzabkhan | well | N 48° 37′ 0'' | E 94° 18′ 0'' |
| 4666 | Yaruugiyn Gol Yaruu Gol,Yaruugiin Gol,Yaruugiyn Gol,Yaruugiïn Gol | Mongolia, Dzabkhan | stream | N 47° 48′ 0'' | E 96° 40′ 0'' |
| 4667 | Yaran Hudag Yarain khuduk,Yaran Hudag,Yarayn Hudag | Mongolia, Dzabkhan | well | N 48° 6′ 0'' | E 95° 43′ 0'' |
| 4668 | Yalata Bulag Ilatu,Rodnik Yalatu bulak,Yalata Bulag | Mongolia, Bayanhongor | spring(s) | N 47° 10′ 0'' | E 99° 20′ 0'' |
| 4669 | Uygariin Gol Oygur,Oyguriin Gol,Uygar Gol,Uygariin Gol | Mongolia, Bayan-Ölgii Province | stream | N 49° 20′ 0'' | E 88° 42′ 0'' |
| 4670 | Uvsïn Honhor | Mongolia, Uvs Province | depression(s) | N 49° 49′ 0'' | E 93° 5′ 0'' |
4671  | Uuhan Oboo Uuhan Oboo,Uukhin Obo,Uukhun obo | Mongolia, Govi-Altai Province | cairn | N 45° 30′ 0'' | E 96° 35′ 0'' |
| 4672 | Utur-Dzurgan Höndiy | Mongolia, Bayanhongor | valley | N 44° 59′ 0'' | E 99° 3′ 0'' |
| 4673 | Usan Hötöl Davaa | Mongolia, Hovd | pass | N 47° 30′ 0'' | E 92° 48′ 0'' |
| 4674 | Unegetin Uul | Mongolia, Uvs Province | mountain | N 48° 35′ 0'' | E 93° 36′ 0'' |
| 4675 | Ünegeteyn Uul | Mongolia, Dzabkhan | mountain | N 48° 21′ 0'' | E 93° 45′ 0'' |
| 4676 | Uliast | Mongolia, Bayan-Ölgii Province | populated place | N 48° 55′ 0'' | E 91° 15′ 0'' |
| 4677 | Ulann Hayrhan Uul | Mongolia, Govi-Altai Province | mountain | N 45° 42′ 0'' | E 94° 28′ 0'' |
| 4678 | Ulaan Oboo Ulaan Oboo,Ulaan Ovoo,Ulan obo | Mongolia, Dzabkhan | cairn | N 47° 34′ 0'' | E 95° 42′ 0'' |
| 4679 | Ulaan Hojgor Uul | Mongolia, Govi-Altai Province | mountain | N 43° 36′ 0'' | E 96° 20′ 0'' |
| 4680 | Uhur Ulaan Uul | Mongolia, Ömnögovĭ | mountain | N 43° 3′ 0'' | E 99° 55′ 0'' |
| 4681 | Üdzüür Usa Hudag Kolodets Utszyur usu khuduk,Udzuur Us Hudag,Udzuur Usa Hudag,Udzüür Us Hudag,Üdzüür Usa Hudag | Mongolia, Bayanhongor | well | N 44° 16′ 0'' | E 99° 45′ 0'' |
| 4682 | Tu-tzu-han-su-hai | Mongolia, Bayanhongor | populated place | N 42° 45′ 0'' | E 98° 48′ 0'' |
| 4683 | Tulan Uul | Mongolia, Uvs Province | mountain | N 49° 3′ 0'' | E 91° 38′ 0'' |
| 4684 | Tulan Uul | Mongolia, Uvs Province | mountain | N 48° 58′ 0'' | E 91° 32′ 0'' |
| 4685 | Tsolen Boodo Uul | Mongolia, Govi-Altai Province | mountain | N 44° 55′ 0'' | E 94° 40′ 0'' |
| 4686 | Tsogtjargalan | Mongolia, Dzabkhan | populated place | N 47° 35′ 0'' | E 95° 15′ 0'' |
| 4687 | Tsetserlig Gol Tsetserleg Gol,Tsetserli gol,Tsetserlig Gol | Mongolia, Khövsgöl Province | stream | N 49° 30′ 0'' | E 97° 1′ 0'' |
| 4688 | Tsetsen Uul | Mongolia, Bayanhongor | mountain | N 45° 8′ 0'' | E 99° 6′ 0'' |
| 4689 | Tsengeliin Gol Reka Tsangil,Tsangiri Kawa,Tsengeliin Gol | Mongolia, Govi-Altai Province | stream | N 46° 9′ 0'' | E 94° 55′ 0'' |
| 4690 | Tsengel Hayrhan Uul | Mongolia, Bayan-Ölgii Province | mountain | N 48° 38′ 0'' | E 89° 4′ 0'' |
| 4691 | Tseejiin Usa Rodnik Tseechzhiin usu,Tsechzhiin Usu,Tseejiin Usa | Mongolia, Hovd | spring(s) | N 45° 5′ 0'' | E 92° 8′ 0'' |
| 4692 | Tsagaan-Uul | Mongolia, Govi-Altai Province | populated place | N 44° 58′ 0'' | E 98° 2′ 0'' |
| 4693 | Tsagaan-Obot Davaa | Mongolia, Bayan-Ölgii Province | pass | N 49° 1′ 0'' | E 89° 19′ 0'' |
| 4694 | Tsagaan Bulag Tsagaan,Tsagaan Bulag,Tsagan Bulak | Mongolia, Bayanhongor | spring(s) | N 42° 46′ 0'' | E 98° 48′ 0'' |
| 4695 | Toyrimiin Hudag Kolodets Toyrimiin khuduk,Toirimiin khuduk,Toyrimiin Hudag | Mongolia, Govi-Altai Province | well | N 46° 30′ 0'' | E 97° 30′ 0'' |
| 4696 | Tobhata Uul | Mongolia, Dzabkhan | mountain | N 48° 21′ 0'' | E 95° 57′ 0'' |
| 4697 | Terhiyn Gol Reka Terkhi,Terhiyn Gol,Terkhin-gol | Mongolia, Arkhangai Province | stream | N 48° 8′ 0'' | E 99° 36′ 0'' |
| 4698 | Teel | Mongolia, Khövsgöl Province | populated place | N 49° 17′ 0'' | E 99° 54′ 0'' |
| 4699 | Tathan Teel Tathan Teel,Tatkhan-tel',Tatkhan-tel’,Telin-gol | Mongolia, | stream | N 48° 18′ 0'' | E 93° 30′ 0'' |
| 4700 | Taryatu Uul | Mongolia, Bayanhongor | mountain | N 45° 5′ 0'' | E 99° 38′ 0'' |
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