Several.

Four on my head from splitting it open several times, now all covered by hair. A scar circling the entire span of my ankle/foot from when that area was caught in a bike chain and torn apart. One on my knee and a few smaller ones on my elbow and forehead from when my older brother pushed me out of a tree and I hit the pavement with my face, knees, and elbows. I also have one on my chest from when a friend of mine nicked it with a knife during a "pretend" knife fight and one somewhere on my lower arms from when I was riding down a steep hill on rollerblades and fell.

Most of these are faint now as they all happened around 6+ years ago.