| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
3551  | Salaagiin Jisa Salaagiin Jisa,Salagin chzhisa | Mongolia, Central Aimak | populated place | N 46° 37′ 0'' | E 105° 21′ 0'' |
| 3552 | Rashaant Oldzit,Oldziyt,Rashaant,Öldziyt,Öldzït | Mongolia, Middle Govĭ | seat of a second-order administrative division | N 45° 18′ 0'' | E 106° 12′ 0'' |
3553  | Ragin Hooloy Ragin Hooloy | Mongolia, East Aimak | depression(s) | N 46° 40′ 0'' | E 116° 11′ 0'' |
| 3554 | Pagan Tologoyn Davaa Pagan Tologoyn Davaa | Mongolia, Selenge Province | pass | N 48° 48′ 0'' | E 107° 32′ 0'' |
| 3555 | Övt Bat-Oldzii,Bat-Oldziy,Bat-Öldziy,Bat-Öldziï,Ovt,Övt | Mongolia, Övörhangay | seat of a second-order administrative division | N 46° 49′ 0'' | E 102° 15′ 0'' |
| 3556 | Övör Hadat Ovor Hadat,Wo-po-erh-ha-ta-t'e,Wo-po-erh-ha-ta-t’e,Övör Hadat | Mongolia, East Aimak | hill | N 46° 41′ 0'' | E 118° 11′ 0'' |
| 3557 | Övör Chuluut Ovor Chuluut,Wo-po-erh-ch'u-lu-t'e,Wo-po-erh-ch’u-lu-t’e,Övör Chuluut | Mongolia, East Aimak | rock | N 46° 54′ 0'' | E 119° 50′ 0'' |
| 3558 | Ovoot Shar Tolgoy Ao-pao-t'u-sha-erh-t'ao-le-kai,Ao-pao-t’u-sha-erh-t’ao-le-kai,Ovoot Shar Tolgoy | Mongolia, Ömnögovĭ | hill | N 41° 59′ 0'' | E 103° 7′ 0'' |
| 3559 | Ovootïn Hyar Ao-pao-t'ing-ho-la,Ao-pao-t’ing-ho-la,Ovootin Hyar,Ovootïn Hyar | Mongolia, East Gobi Aymag | mountain | N 42° 38′ 0'' | E 109° 50′ 0'' |
| 3560 | Ovoot Hüren Uul Ao-pao-t'u-hu-jeng-wu-la,Ao-pao-t’u-hu-jeng-wu-la,Ovoot Huren Uul,Ovoot Hüren Uul | Mongolia, Ömnögovĭ | mountain | N 41° 59′ 0'' | E 103° 10′ 0'' |
| 3561 | Ovoot Höh Uul Ao-pao-t'u-hu-ho-wu-la,Ao-pao-t’u-hu-ho-wu-la,Ovoot Hoh Uul,Ovoot Höh Uul | Mongolia, Ömnögovĭ | mountain | N 41° 54′ 0'' | E 104° 31′ 0'' |
| 3562 | Ovoot Had Ao-pao-t'e-ha-ta,Ao-pao-t’e-ha-ta,Ovoot Had | Mongolia, East Aimak | hill | N 46° 32′ 0'' | E 117° 12′ 0'' |
| 3563 | Ovoot Ao-pao-t'e,Ao-pao-t’e,Ovoot | Mongolia, East Gobi Aymag | hill | N 42° 38′ 0'' | E 109° 57′ 0'' |
| 3564 | Otsgor Uul Otsgor Uul | Mongolia, East Aimak | mountain | N 46° 39′ 0'' | E 116° 39′ 0'' |
| 3565 | Otochin Dugang Otochin Dugang,Otochin-Dugan | Mongolia, Arkhangai Province | populated place | N 48° 27′ 0'' | E 100° 17′ 0'' |
| 3566 | Öshig Uul Gora Ushugin-Obo,Oshig Uul,Öshig Uul | Mongolia, Övörhangay | mountain | N 45° 28′ 0'' | E 101° 49′ 0'' |
3567  | Orvog Gashuunï Ovoo Orbog Gashuun Oboo,Orbok-gashuin-obo,Orvog Gashuuni Ovoo,Orvog Gashuunï Ovoo,Orvog gashuun ovoo,Orwo... | Mongolia, | cairn | N 41° 33′ 0'' | E 105° 0′ 0'' |
| 3568 | Örtöögiin Dugang Ortoogiin Dugang,Urtogiin dugang,Örtöögiin Dugang | Mongolia, Bayanhongor | populated place | N 46° 7′ 0'' | E 100° 48′ 0'' |
| 3569 | Örgöst Tolgoy Orgost Tolgoy,Wo-erh-kuo-ssu-t'e-t'ao-le-kai,Wo-erh-kuo-ssu-t’e-t’ao-le-kai,Örgöst Tolgoy | Mongolia, East Gobi Aymag | hill | N 44° 8′ 0'' | E 111° 35′ 0'' |
| 3570 | Ordogoiin Dugang Ordogoiin Dugang,Ordogoin dugang | Mongolia, Bulgan | populated place | N 49° 50′ 0'' | E 103° 28′ 0'' |
| 3571 | Oortsog Uul Ao-erh-ch'i-ko-wu-la,Ao-erh-ch’i-ko-wu-la,Oortsog Uul | Mongolia, East Gobi Aymag | hill | N 42° 38′ 0'' | E 109° 47′ 0'' |
| 3572 | Oont Öndör Ao-nao-t'e-wen-to-erh,Ao-nao-t’e-wen-to-erh,Oont Ondor,Oont Öndör | Mongolia, East Aimak | hill | N 47° 58′ 0'' | E 118° 23′ 0'' |
| 3573 | Öntsög Maanĭt Ontsog Maanit,Wen-ch'i-ko-ma-ni-t'e,Wen-ch’i-ko-ma-ni-t’e,Öntsög Maanĭt | Mongolia, East Gobi Aymag | hill | N 42° 35′ 0'' | E 109° 40′ 0'' |
| 3574 | Ongo Uul Ongo Uul | Mongolia, Hentiy | mountain | N 47° 22′ 0'' | E 111° 23′ 0'' |
3575  | Ongiin Hudag Kolodets Ongyyn khuduk,Ongiin Hudag,Ongiyn Hudag,Ongoyn khuduk Well,Ongyin khuduk,Ongöyn khuduk Well | Mongolia, Ömnögovĭ | well | N 44° 59′ 0'' | E 103° 43′ 0'' |
| 3576 | Öndör Ulaan Uul Ondor Ulaan Uul,Wen-to-erh-wu-lan-wu-la,Öndör Ulaan Uul | Mongolia, East Aimak | mountain | N 46° 46′ 0'' | E 118° 58′ 0'' |
| 3577 | Öndör Ulaan Tsav Ondor Ulaan Tsav,Wen-to-erh-wu-lan-ch'a-pu,Wen-to-erh-wu-lan-ch’a-pu,Öndör Ulaan Tsav | Mongolia, East Gobi Aymag | hill | N 43° 6′ 0'' | E 110° 42′ 0'' |
| 3578 | Öndör Uhaa Ondor Uhaa,Wen-to-erh-hua,Öndör Uhaa | Mongolia, Sühbaatar | hill | N 44° 46′ 0'' | E 114° 0′ 0'' |
| 3579 | Önchin Tolgoy Onchin Tolgoy,Wen-ch'in-t'ao-le-kai,Wen-ch’in-t’ao-le-kai,Önchin Tolgoy | Mongolia, Sühbaatar | hill | N 45° 48′ 0'' | E 116° 13′ 0'' |
| 3580 | Onch Hayrhan Uul Onch Hayrhan Uul,Wen-ch'i-hai-erh-han-wu-la,Wen-ch’i-hai-erh-han-wu-la | Mongolia, Ömnögovĭ | mountain | N 41° 54′ 0'' | E 104° 27′ 0'' |
| 3581 | Ömnö Senjit Chuluu Omno Senjit Chuluu,Wo-men-sen-chi-t'e-ch'u-lu,Wo-men-sen-chi-t’e-ch’u-lu,Ömnö Senjit Chuluu | Mongolia, Sühbaatar | rock | N 45° 26′ 0'' | E 114° 45′ 0'' |
| 3582 | Orshun Gol A-erh-shun Ho,A-erh-shun-kuo-lo Ho,Arshan Gol,Arshun River,Hu-lun Ho,Hulun,Niao-erh-hsun Ho,Niao-erh... | CN,MN | stream | N 48° 59′ 0'' | E 117° 38′ 0'' |
| 3583 | Kerulen River  Herelen,Herelen River,Hereleng,Hereleng Gol,Herlen Gol,Herlen He,Herlun He,Herulun,Herulun Gol,Herül... | CN,MN | stream | N 48° 45′ 39'' | E 117° 2′ 31'' |
| 3584 | Gora Kuku-Under Gora Kuku-Under,Gora Kuku-Undur,Гора Куку-Ундер | MN,RU | mountain elevation 1015m | N 50° 20′ 23'' | E 106° 11′ 1'' |
| 3585 | Yenisey Enisei,Enisej,Gorlog moeroen,Gorlog mörön,Gorlog mүrehn,Gorlog mөrөn,Ienies,Jenisej,Jenissei,Ulu Kem... | RU,MN | stream | N 71° 49′ 39'' | E 82° 40′ 49'' |
| 3586 | Dzaygal-Gol Dzaiga Gol,Dzajgal-Gol,Dzaygal-Gol,Dzaïga Gol,Tszaygal Gol,Дзайгал-Гол | Mongolia, Dzabkhan | stream | N 49° 44′ 13'' | E 96° 43′ 42'' |
| 3587 | Gora Dolon-Khushig-Ula Doloon Hoshig Uul,Doloon Hoshigo Uula,Doloon Höshig Uul,Doloon Höshigö Uula,Gora Dolon-Khushig-Ula,Г... | RU,MN | mountain | N 51° 10′ 0'' | E 97° 45′ 0'' |
| 3588 | Yumiin Jisa Yumiin Jisa,Yumiin chzhisa | Mongolia, Bayanhongor | populated place | N 46° 12′ 0'' | E 99° 2′ 0'' |
| 3589 | Yihe Uula Gora Ikhe ula,Yihe Uula | Mongolia, Khövsgöl Province | mountain | N 49° 31′ 0'' | E 99° 27′ 0'' |
| 3590 | Yihe Bulagiin Dugang Ikhe bulagiin dugang,Yihe Bulagiin Dugang | Mongolia, Dzabkhan | populated place | N 48° 49′ 0'' | E 96° 33′ 0'' |
| 3591 | Yamaat Uul Ya-ma-t'e-wu-la,Ya-ma-t’e-wu-la,Yamaat Uul | Mongolia, Hovd | mountain | N 45° 5′ 0'' | E 92° 1′ 0'' |
| 3592 | Yamaatïn Nuruu Ya-ma-t'e-nu-ju,Ya-ma-t’e-nu-ju,Yamaatin Nuruu,Yamaatïn Nuruu | Mongolia, Bayan-Ölgii Province | mountains | N 48° 8′ 0'' | E 88° 58′ 0'' |
| 3593 | Yaaruugiin Hüryee Yaaruugiin Huryee,Yaaruugiin Hüryee,Yarugiin Khure | Mongolia, Dzabkhan | populated place | N 47° 43′ 0'' | E 96° 36′ 0'' |
| 3594 | Oigor Gol Ih Uygar Gol,Uigar Gol,Uigur Gol,Urd Uygar,Uygar Gol,Uïgar Gol | Mongolia, Bayan-Ölgii Province | stream | N 49° 19′ 0'' | E 88° 35′ 2'' |
| 3595 | Uushtayn Uul Uushtayn Uul | Mongolia, Bayan-Ölgii Province | mountain | N 48° 58′ 0'' | E 90° 57′ 0'' |
| 3596 | Üsügen Uul Usugen Uul,Wu-su-kai-yin-wu-la,Üsügen Uul | Mongolia, Bayan-Ölgii Province | mountain | N 47° 21′ 0'' | E 90° 33′ 0'' |
| 3597 | Urmogayty Davaa Urmogayty Davaa | Mongolia, Bayan-Ölgii Province | pass | N 48° 15′ 0'' | E 88° 35′ 0'' |
| 3598 | Ünegt Ulaan Uul Unegt Ulaan Uul,Wu-na-ko-t'e-wu-lan-wu-la,Wu-na-ko-t’e-wu-lan-wu-la,Ünegt Ulaan Uul | Mongolia, Hovd | mountain | N 46° 24′ 0'' | E 91° 2′ 0'' |
| 3599 | Uliastay Gol Uliastay Gol,Ulyaasatayn Gol,Ulyasutain gol,Ulyasutay,Ulyasutayin gol | Mongolia, Uvs Province | stream | N 49° 35′ 0'' | E 90° 39′ 0'' |
| 3600 | Ulagchin Ulaagchin,Ulagchin | Mongolia, Dzabkhan | populated place | N 48° 38′ 0'' | E 96° 50′ 0'' |
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