· Osage Copperhead
Some names beginning with the letter O are:OlafOleanderOliveOliverOllieOmarOpalOpheliaOprahOrvilleOscarOtto
Ohio begins with the letter O. Oklahoma and Oregon begin with the letter O.
oriole
olla
Opel
Oolong
Georgia O'Keefe was an American artist. Her name begins with the letter O.
orchid oleander
Odium is a synonym for hate. It begins with the letter O.
Yes, Oxford United
Oldsmobile and Opel are the only car manufacturers I can name that start with O.
There is only one current country beginning with the letter "O"... Oman.