None that I know of... although the farther you go back, the more people are related to you, so everyone is, kind of like how Justin Bieber, Avril, and Celine are all distantly related.... I'm just not rich or a celebrity to figure out my family tree.
I knew a girl who was somehow related to Van Gogh, and she's a really good artist too.
As for famous people I know, a math teacher at my high school is a famous NLL player, and his nephew plays in the NHL (both are named John Tavares)
Oh and I shook Arnold Schwarzenegger's hand if that counts