This is a list of names in which the usage is Turkish; and the first letter is O.
Oğuzhan m TurkishFrom
Oğuz, the name of an ancient Turkic people, combined with Turkish
han meaning "khan, ruler, leader".
Onur m TurkishMeans
"honour" in Turkish (borrowed from French
honneur).
Orhan m TurkishDerived from Turkish
or, of uncertain meaning, possibly from a Turkic root meaning "place", and
han meaning "khan, ruler, leader". This was the name of a 14th-century sultan of the Ottoman Empire.
Osman m Turkish, Kurdish, Albanian, Bosnian, MalayTurkish, Kurdish, Albanian, Bosnian and Malay form of
Uthman. This was the name of the founder of the Ottoman Empire in the 14th century. It was later borne by two more Ottoman sultans.