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Top 50 - Largest City in Each Country Beginning With 'O'

Try to name the 50 most populous cities of the most populous city in each country beginning with the letter 'O'.
Based on population figures from citypopulation.de for urban agglomeration/metro area
Including territories and overseas territories
Quiz by stubart409
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Last updated: January 14, 2024
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First submittedJanuary 14, 2024
Times taken108
Average score28.0%
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#
Population
Country
Answer
1
17,700,000
Japan
Osaka
2
3,725,000
United States
Orlando
3
2,800,000
Burkina Faso
Ouagadougou
4
1,570,000
Algeria
Oran
5
1,330,000
Canada
Ottawa
6
1,310,000
Nigeria
Onitsha
7
1,230,000
Norway
Oslo
8
1,160,000
Russia
Omsk
9
1,100,000
Ukraine
Odessa
10
713,925
Mexico
Oaxaca
11
614,000
Morocco
Oujda
12
367,583
Philippines
Olongapo
13
358,146
Pakistan
Okara
14
352,894
Kazakhstan
Óskemen
15
315,881
Kyrgyzstan
Osh
16
298,980
United Kingdom
Oxford
17
285,926
France
Orléans
18
282,450
Czech Republic
Ostrava
19
281,200
Germany
Osnabrück
20
264,943
Bolivia
Oruro
21
263,654
Spain
Oviedo
22
252,186
Turkey
Osmaniye
23
240,645
South Korea
Osan
24
237,970
India
Ottappalam
25
210,271
Finland
Oulu
#
Population
Country
Answer
26
183,105
Romania
Oradea
27
180,863
Denmark
Odense
28
172,569
Kenya
Ongata Rongai
29
170,225
Poland
Olsztyn
30
147,826
Chile
Osorno
31
143,644
Ghana
Obuasi
32
141,894
Uzbekistan
Olmaliq
33
127,600
Venezuela
Ocumare del Tuy
34
126,604
Sweden
Örebro
35
121,537
Angola
Ondjiva
36
121,000
Colombia
Ocaña
37
113,876
Belgium
Ostend
38
112,170
Brazil
Ourinhos
39
106,138
Switzerland
Olten - Zofingen
40
103,658
Belarus
Orsha
41
95,900
Argentina
Olavarria
42
91,854
South Africa
Orkney
43
81,915
Aruba
Oranjestad
44
75,535
Croatia
Osijek
45
61,048
Italy
Olbia
46
60,685
Gabon
Oyem
47
58,250
Haiti
Ouanaminthe
48
56,930
Netherlands
Oss
49
52,202
Portugal
Oliveira de Azeméis
50
49,750
Honduras
Olanchito
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3 Comments
Geografen
+1
Level 68
Jan 14, 2024
Örebro doesn't begin with o.
Unimportant
+1
Level 70
Apr 21, 2024
Biggest city in Brazil starting with O would be Osasco, no?
stubart409
+1
Level 67
Apr 23, 2024
I didn't count Osasco, because I considered it to be part of Sao Paulo.
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