Biggest Cities By Letter - O

Name the 20 largest urban areas in the world that begin with the letter O.
Quiz by relessness
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Last updated: June 6, 2013
First submittedJune 6, 2013
Times taken138
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Population
Country
City
17,175,000
Japan
Osaka
2,193,000
Burkina Faso
Ouagadougou
1,931,000
United States
Orlando
1,148,000
Russia
Omsk
1,010,000
Ukraine
Odessa
948,000
Canada
Ottawa
908,000
Nigeria
Onitsha
901,000
United States
Oklahoma City
899,000
Norway
Oslo
775,000
Japan
Otsu
Population
Country
City
732,000
United States
Omaha
650,000
Japan
Okayama
556,000
United States
Ogden
540,000
Russia
Orenburg
500,000
Nigeria
Oyo
480,000
Czech Republic
Ostrava
410,000
Japan
Oita
369,000
United States
Oxnard
180,000
United States
Olympia
161,000
United States
Ocala
+1
Level 67
Jun 7, 2013
How challenging! Omaha was the only obvious one I missed though.
+1
Level 84
Aug 27, 2018
Where is Oran, second biggest city in Algeria?