My first name, way too common. First and last, I share with a woman in England who is an expert on children with a certain medical condition (don't want to get too specific). She is quite well known, has written books, and has a facility named after her as well. She's done tons of research and is well regarded in her field.
There is also a woman with my exact name who owns a B&B on PEI. There's a good chance I'm related to her as I have a distant branch of my dad's family who lives up there. I always thought it would be kind of funny to go up and stay there - I can only imagine what she might say when I tell her MY name when making the reservation!
And then there are several others, but who spell their name one letter off from mine. Which is the more common spelling of my last name; I see it way more than I do the way I spell it.