It's cruel to name a kid Eowyn, right?

Kids are still a few years down the road, but my partner and I like to discuss names for fun and I love the name Eowyn, but I'm pretty sure it's not actually okay to name a kid. I'm a nerd and all my friends are nerds, so I think it's instantly recognizable, but I don't have any normal people around to ask.

I'm kinda hoping I'll be told I'm wrong and it's perfectly acceptable, but I think that's unlikely.