Not even short for Dustin. Just Dusty.
I was named after this guy:
When I was four or five, my brother was annoyed at me, so he told me that I was named after a ******. I ran to my mother crying, and I don't remember what she said, but we bring it up every now and again and my mom gets really embarrassed, so it's funny.
I found out his real name is Johnnie B. Baker and that Dusty is just a nickname, and I REALLY don't know how I feel about that.