Let's see I've been to:

My sister's
My other sister's
My other sister's 2nd wedding (first husband died in a plane crash)
My brother's wedding
My brother's wedding (2nd time)
My college buddy
My wife's brother
And of course mine.

So 8 in total, that I can remember. I think I attended another wedding but I can't remember who it was so I must've just been there for the food or something.