[Ruatha]

I started using Ruatha when I played X-wing 1993(the first in the series - before Tie fighter) and needed to name my player.
It comes from a location in the Pern Novels by Anne McCaffrey (Ruatha Hold).
I liked the little white dragon (Ruth) from the first of the books I read but forgot the name, but Ruatha got stuck in the head.
So far I haven't had any competition for the name.
I started using it Online in a chat community "The Castle" in 1994.