Law School Graduate
I am not aware of any law schools who require a particular major in order to be accepted, so you should select something that you can do well in and enjoy. This is important because a higher undergraduate GPA (along with a good LSAT score) is what will make you an appealing applicant to law school. I majored in criminology because I am interested in all things criminal, and I am pursuing a career in criminal law.
However, if you have an interest in practicing in some specific areas of law, that area of law may require a particular undergraduate degree. One area of law that immediately comes to mind is patent law, which requires a science or engineering background I believe.