It's my grandma's name. She was
Olga Helen. She was Czechoslovakian.
Despite this, I can't say I've ever been very fond of it. Like Bear says, I think it's the G that's unappealing to me. Or more specifically, it's the LG combination. It kind of gets stuck in my mouth, if that makes any sense. It's definitely not the O for me because about half of my favourite names start with O.