Oz Origin and Meaning
The name Oz is a boy's name of Hebrew origin meaning "strength, powerful, courageous".
This may be a legitimate Hebrew name denoting power, but to any American kid, it will evoke ruby slippers and a yellow brick road. The full Hebrew name is Ozni, who was a grandson of Jacob in the Bible.
As full names such as Ozias, Osgood, and Osmond start to sound more cool and less grandpa, the short form Oz will feel like a more modern possibility.