Barnett is a purely boy’s name and the name’s origin can be trace back to old English. The meaning of the name is “burned clearing”. The name is quite rare as a first name but popular as a surname. A family called Barnett was found to be living in Lancashire and the name was given to people who lived in or near a clearing. Later on people started using it as a first name as well. Some say that they had a family seat there since ancient times. Some variations of the name are Barnette, Barnet and many others.