Cities Starting with O

Cities around the world with population greater than 50,000 starting with the letter O.

Name 2018 Population Country
O'Fallon85,040United States
Oak Lawn56,781United States
Oak Park52,287United States
Oakland419,267United States
Oakville165,697Canada
Oami53,239Japan
Oaxaca262,566Mexico
Obando59,929Philippines
Obera56,528Argentina
Oberhausen219,176Germany
Obihiro173,890Japan
Obninsk107,392Russia
Obonoma68,584Nigeria
Obra56,110India
Obu77,864Japan
Obuase137,856Ghana
Ocala58,218United States
Ocana83,511Colombia
Oceanside175,691United States
Ochakovo-Matveyevskoye114,000Russia
Ochota93,192Poland
Ocotlan81,527Mexico
Ocumare del Tuy166,072Venezuela
Odate64,543Japan
Odawara203,035Japan
Ode75,463Nigeria
Odense145,931Denmark
Odessa118,968United States
Odessa1,001,558Ukraine
Odintsovo137,041Russia
Odivelas54,624Portugal
OEdemis67,153Turkey
OErebro115,765Sweden
Offa113,830Nigeria
Offenbach119,192Germany
Offenburg59,238Germany
Ogaki150,570Japan
Ogaminana84,373Nigeria
Ogden85,444United States
Ohafia-Ifigh73,355Nigeria
Ohrid54,908Macedonia
Oi50,593Japan
Oita448,907Japan
Ojo de Agua242,272Mexico
Okanagan297,601Canada
Okap134,815Haiti
Okara223,648Pakistan
Okaya54,286Japan
Okayama639,652Japan
Okazaki352,361Japan
Okcheon56,634South Korea
Oke Mesi79,563Nigeria
Okegawa75,062Japan
Okene479,178Nigeria
Okigwe115,499Nigeria
Okinawa125,483Japan
Oklahoma City631,346United States
Okrika133,271Nigeria
Oktyabr'skiy108,200Russia
Olathe134,305United States
Olavarria86,320Argentina
Oldenburg159,218Germany
Oldham104,782United Kingdom
Oleksandriya103,000Ukraine
Olinda366,754Brazil
Olmaliq121,207Uzbekistan
Olomouc101,268Czech Republic
Olongapo221,178Philippines
Olsztyn171,803Poland
Oltinko`l59,122Uzbekistan
Olupona95,002Nigeria
Olympia50,302United States
Omaha443,885United States
Omdurman1,200,000Sudan
Ome149,323Japan
Omihachiman69,189Japan
Omsk1,129,281Russia
Omura89,918Japan
Omuta131,974Japan
Ondo257,005Nigeria
Ongjin64,247North Korea
Ongole172,872India
Onitsha561,066Nigeria
Ono50,230Japan
Onojo94,957Japan
Onomichi90,936Japan
Ontario171,214United States
Oosterhout53,107Netherlands
Ooty98,238India
Opava60,252Czech Republic
Opole127,676Poland
Oradea206,614Romania
Orai158,265India
Oral200,000Kazakhstan
Oran645,984Algeria
Orange140,992United States
Ordos1,940,653China
Ordu116,788Turkey
Orekhovo-Borisovo144,000Russia
Orekhovo-Borisovo Severnoye128,000Russia
Orekhovo-Zuyevo120,000Russia
Orel324,200Russia
Orem94,457United States
Orenburg550,204Russia
Orhangazi51,792Turkey
Orihuela86,164Spain
Orita Eruwa71,027Nigeria
Orizaba121,348Mexico
Orkney145,801South Africa
Orland Park58,619United States
Orlando270,934United States
Orleans124,149France
Ormoc191,200Philippines
Oroqen Zizhiqi61,582China
Orsha125,347Belarus
Orsk246,836Russia
Orumiyeh577,307Iran
Oruro208,684Bolivia
Osaka2,592,413Japan
Osan158,978South Korea
Osasco677,856Brazil
Osh200,000Kyrgyzstan
Oshawa247,989Canada
Oshkosh66,555United States
Oshnaviyeh50,661Iran
Osijek88,140Croatia
Oslo580,000Norway
Osmanabad85,521India
Osmaniye202,837Turkey
Osnabrueck166,462Germany
Osogbo156,694Nigeria
Osorno135,773Chile
Oss76,430Netherlands
Ostankinskiy60,000Russia
Ostend69,011Belgium
Ostrava313,088Czech Republic
Ostroleka53,740Poland
Ostrow Wielkopolski72,898Poland
Ostrowiec Swietokrzyski73,989Poland
Ota152,104Japan
Otaru143,792Japan
Otawara58,888Japan
Otradnyy50,127Russia
Otsu298,164Japan
Ottappalam50,913India
Ottawa812,129Canada
Ouagadougou1,086,505Burkina Faso
Ouahigouya61,096Burkina Faso
Ouargla129,402Algeria
Ouarzazat57,245Morocco
Oudtshoorn61,507South Africa
Oued Rhiou59,864Algeria
Oued Zem84,910Morocco
Ouezzane58,684Morocco
Ouidah83,503Benin
Oujda-Angad405,253Morocco
Oulad Teima66,832Morocco
Oulu128,618Finland
Oum el Bouaghi100,821Algeria
Oume52,070Ivory Coast
Ourense107,742Spain
Ourinhos97,799Brazil
Ouro Preto63,678Brazil
Ovalle77,138Chile
Overland Park186,515United States
Oviedo224,005Spain
Owensboro59,042United States
Owerri215,038Nigeria
Owo276,574Nigeria
Oxford171,380United Kingdom
Oxnard207,254United States
Oxnard Shores187,235United States
Oyama159,936Japan
Oyan73,622Nigeria
Oyo736,072Nigeria
Ozamiz City93,082Philippines
Ozerki95,000Russia
Ozersk81,023Russia
Ozone Park53,985United States
Ozubulu73,812Nigeria