The American Bar Association does not recommend any undergraduate majors or group of courses to prepare for a legal education. Students are admitted to law school from almost every academic discipline.
However, here are majors in subjects that are considered to be traditional preparation for law school:
- Political science
Any of the math or sciences may be good preparation for developing analytical discipline and research skills. Arts and music may help with creativity and criticism.
Regardless, you will need to develop critical thinking skills and develop good communication and writing skills.