My second cousin is Troy Aikman. His mom is my dad's cousin. Never actually met the guy, but I was at a family reunion with his mom this summer.
My dad is friends with former Cardinals WR Anthony Edwards. I believe they met because Anthony Edwards worked at the hardware store/lumber yard my dad managed at the time. Could be wrong though, havn't thought about it in a long time.
My old photo teacher from High School is the niece of Joe DiMaggio. She even has the same last name.
Also i met a Seahawks lineman a long time ago, can't even remember his name though, so that doesn't really count.
Ans also last year I met an old guy where I worked who had a Packers Supperbowl 1 ring. never got his name though and i can't even be entirely sure it was a real ring, but he said it was and as far as I could tell, it looked real.
Ohh, and my insurance guy's name is David Robinson. Not the same one, obviously, but at the time i thought it was funny.