Is Addison a boy or girl name?

Addison is a boy's name. My name is Addison and i am a boy. The name Addison means Son of Adam. So really and girl named Addison is someone that parents had a girl they never wanted XD.

well addison is also a girl name my sister is named Addison and she is a girl that was never wanted!!

Addison is not a girls name at all your sister is a daughter never wanted then.