OCEAN!
oribi
· organization
oleander
The Maori name for beach beginning with "o" is "onepu."
Octopus, Ocean, Orca, Otter, Oyster
In German "Auschwitz", in Polish beginning with O.. svice (??? ) was a large extermination camp - what I heard. Having the right name you can check wikipedia or google.
There is no animal that has a long o at the beginning.
Georgia O'Keefe was an American artist. Her name begins with the letter O.
Oats.
oblong
Some names beginning with the letter O are:OlafOleanderOliveOliverOllieOmarOpalOpheliaOprahOrvilleOscarOtto
oriole