| Country | City | Population | % Correct |
|---|---|---|---|
| Canada | Ottawa | 989,567 | 95%
|
| Norway | Oslo | 693,494 | 92%
|
| Japan | Osaka | 2,725,006 | 89%
|
| United States | Oklahoma City | 655,057 | 86%
|
| Ukraine | Odessa | 1,017,699 | 81%
|
| Algeria | Oran | 803,329 | 76%
|
| Burkina Faso | Ouagadougou | 2,453,496 | 76%
|
| Russia | Omsk | 1,154,507 | 75%
|
| United Kingdom | Oxford | 162,291 | 63%
|
| France | Orléans | 116,238 | 61%
|
| Finland | Oulu | 205,137 | 57%
|
| Denmark | Odense | 180,302 | 53%
|
| Czech Republic | Ostrava | 287,968 | 53%
|
| Kyrgyzstan | Osh | 283,253 | 44%
|
| Dominican Republic | Oviedo | 10,986 | 43%
|
| Spain | Oviedo | 219,910 | 43%
|
| Sudan | Omdurman | 1,849,659 | 37%
|
| Sweden | Örebro | 125,817 | 34%
|
| Germany | Oberhausen | 210,764 | 27%
|
| Croatia | Osijek | 84,104 | 27%
|
| Belgium | Ostend | 71,647 | 26%
|
| Australia | Orange | 40,804 | 23%
|
| Belize | Orange Walk | 13,665 | 23%
|
| Bolivia | Oruro | 264,943 | 21%
|
| Poland | Olsztyn | 171,979 | 20%
|
| Romania | Oradea | 196,367 | 18%
|
| Morocco | Oujda | 494,252 | 18%
|
| North Macedonia | Ohrid | 38,840 | 17%
|
| Italy | Olbia | 60,154 | 15%
|
| China | Ordos | 496,100 | 15%
|
| Kazakhstan | Oskemen | 333,178 | 15%
|
| Brazil | Osasco | 699,940 | 13%
|
| Nigeria | Ogbomosho | 433,030 | 12%
|
| Netherlands | Oss | 56,930 | 12%
|
| Belarus | Orsha | 108,100 | 11%
|
| Central African Republic | Obo | 7,187 | 8%
|
| Turkey | Osmaniye | 237,476 | 8%
|
| Pakistan | Okara | 357,935 | 7%
|
| Mexico | Ojo de Agua | 386,290 | 5%
|
| India | Ongole | 208,344 | 5%
|
| Andorra | Ordino | 3,034 | 5%
|
| Guyana | Orealla | 981 | 5%
|
| Chile | Osorno | 147,826 | 5%
|
| Ghana | Obuasi | 143,644 | 4%
|
| Latvia | Ogre | 23,273 | 4%
|
| Argentina | Olavarría | 95,900 | 4%
|
| New Zealand | Oamaru | 13,700 | 3%
|
| Colombia | Ocaña | 116,200 | 3%
|
| Portugal | Odivelas | 56,847 | 3%
|
| South Africa | Orkney | 91,854 | 3%
|
| South Korea | Osan | 236,075 | 3%
|
| Namibia | Oshakati | 36,541 | 3%
|
| Mali | Ouélessébougou | 50,056 | 3%
|
| Benin | Ouidah | 47,616 | 3%
|
| Djibouti | Obock | 11,706 | 2%
|
| Egypt | Obour | 250,000 | 2%
|
| Serbia | Obrenovac | 25,429 | 2%
|
| Nicaragua | Ocotal | 46,308 | 2%
|
| Panama | Ocú | 7,006 | 2%
|
| Honduras | Olanchito | 45,270 | 2%
|
| Jamaica | Old Harbour | 28,912 | 2%
|
| Philippines | Olongapo | 310,394 | 2%
|
| Angola | Ondjiva | 121,537 | 2%
|
| Kenya | Ongata Rongai | 172,569 | 2%
|
| Somalia | Oog | 45,012 | 2%
|
| Ireland | Oranmore | 4,990 | 2%
|
| Ecuador | Otavalo | 39,354 | 2%
|
| Republic of the Congo | Ouesso | 28,179 | 2%
|
| Ivory Coast | Oumé | 45,210 | 2%
|
| Austria | Oberwart | 7,064 | 1%
|
| Venezuela | Ocumare del Tuy | 127,600 | 1%
|
| D. R. Congo | Oicha | 43,065 | 1%
|
| Indonesia | Oksibil | 4,087 | 1%
|
| Iceland | Ólafsvík | 995 | 1%
|
| Mongolia | Ölgij | 36,930 | 1%
|
| Peru | Olmos | 16,900 | 1%
|
| Uganda | Omoro | 23,200 | 1%
|
| Bulgaria | Omurtag | 8,612 | 1%
|
| Switzerland | Opfikon | 21,014 | 1%
|
| El Salvador | Opico | 44,986 | 1%
|
| Greece | Oraiokastro | 20,852 | 1%
|
| Botswana | Orapa | 9,600 | 1%
|
| Moldova | Orhei | 21,065 | 1%
|
| Estonia | Otepää | 2,105 | 1%
|
| Niger | Ouallam | 10,594 | 1%
|
| Haiti | Ouanaminthe | 58,250 | 1%
|
| Senegal | Ouro Sogui | 15,654 | 1%
|
| Hungary | Ózd | 32,214 | 1%
|
| Georgia | Ozurgeti | 14,372 | 1%
|
| Cameroon | Obala | 29,054 | 0%
|
| Lithuania | Obeliai | 782 | 0%
|
| Tajikistan | Obikiik | 12,300 | 0%
|
| Kosovo | Obilić | 6,864 | 0%
|
| Paraguay | Obligado | 11,441 | 0%
|
| Zimbabwe | Odzi | 3,438 | 0%
|
| Tonga | Ohonua | 1,438 | 0%
|
| Barbados | Oistins | 1,203 | 0%
|
| Myanmar | Oktwin | 14,143 | 0%
|
| Gambia | Old Jeshwang | 7,552 | 0%
|
| Antigua and Barbuda | Old Road | 1,093 | 0%
|
| Guatemala | Olintepeque | 31,545 | 0%
|
| Papua New Guinea | Olsobip | 1,000 | 0%
|
| Uruguay | Ombúes de Lavalle | 3,390 | 0%
|
| Eritrea | Omhajer | 9,240 | 0%
|
| Iran | Omidiyeh | 67,427 | 0%
|
| Thailand | Om Noi | 53,978 | 0%
|
| Cyprus | Omorfita | 10,856 | 0%
|
| F. S. Micronesia | Oneop | 505 | 0%
|
| Madagascar | Onjatsy | 8,000 | 0%
|
| Kiribati | Onotoa | 1,393 | 0%
|
| Suriname | Oostelijke Polders | 7,153 | 0%
|
| Uzbekistan | Oqtosh | 34,300 | 0%
|
| Bosnia and Herzegovina | Orašje | 3,614 | 0%
|
| Azerbaijan | Ordubad | 10,372 | 0%
|
| Albania | Orikum | 5,503 | 0%
|
| Tanzania | Orkesumet | 5,325 | 0%
|
| Slovenia | Ormož | 2,102 | 0%
|
| Costa Rica | Orotina | 8,640 | 0%
|
| Trinidad and Tobago | Ortoire | 764 | 0%
|
| Israel | Or Yehuda | 36,813 | 0%
|
| East Timor | Ossu | 4,263 | 0%
|
| Sao Tome and Principe | Ototó | 585 | 0%
|
| Mauritania | Ouad Naga | 4,179 | 0%
|
| Comoros | Ouani | 8,841 | 0%
|
| Cambodia | Oudong | 7,655 | 0%
|
| Tunisia | Oued Ellil | 57,851 | 0%
|
| Chad | Oum Hadjer | 26,552 | 0%
|
| Gabon | Owendo | 79,300 | 0%
|
| Montenegro | Ozrinići | 2,057 | 0%
|