The name has been used by the Welsh folk for centuries and has largely increased in popularity in the past 10 years.
Jack: i couldn't agree more!
Uncle Ben: what does it mean in english??
Here's just one of them.
A Nordic King who defeated a Saxonic King by transforming into a big deer.
Osian = Big Deer.
Farmer Jimm- Come look, Belinda! I just shot me an Osian!
Susan- So, Kyle... How is he... you know... in bed?
Claire- You don't mess around do you Susan? *Giggles* Yeah he's a total Osian.
Saxon King Thom- HOLY SHIZN IT'S AN OSIAN!