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Biggest World Cities by Letter - O

In the entire world there are eleven urban areas starting with the letter O that have a population over 1,000,000. How many can you name?

Urban area population, not city proper

According to citypopulation.de, January 2019

Quiz by geoPunk

Last updated: February 13, 2019

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Keep scrolling down for answers and more stats ...

Country	Population	City
Japan	17.7 mil	Osaka
United States	3.38 mil	Orlando
Burkina Faso	2.53 mil	Ouagadougou
Japan	2.20 mil	Okayama
Algeria	1.45 mil	Oran
Canada	1.23 mil	Ottawa