Oakland is a city in California. It begins with the letter O.
Onion
* Orange
Opra
Otto Van Bismarck
Some names beginning with the letter O are:OlafOleanderOliveOliverOllieOmarOpalOpheliaOprahOrvilleOscarOtto
As of this date (Feb. 10, 2014) there are 5 LDS Temples that start with the letter 'O'.Oakland, California, U.S.A.Oaxaca, MexicoOdgen, Utah, U.S.A.Oklahoma City, Oklahoma, U.S.A.Oquirrh Mountain, Utah, U.S.A.
Orlaith, Olive, Oliviea
Onimokpoy
Ox or oxen
old McDonald
Oldsmobile and Opel are the only car manufacturers I can name that start with O.
Odintsovo is a city southwest of Moscow, Russia.