Straight from the HLS website:
“What is the best “pre-law” curriculum? How does one prepare for law school?
Harvard Law School considers applications from all undergraduate majors. There are no fixed requirements with respect to the content of pre-legal education. The nature of a candidate’s college work, as well as the quality of academic performance, are reviewed in the selection process. However, in preparing for law school, a broad college education is usually preferable to one that is narrowly specialized. The Admissions Committee looks for a showing of thorough learning in a field of your choice, such as history, economics, government, philosophy, mathematics, science, literature or the classics (and many others), rather than a concentration in courses given primarily as vocational training.” https://hls.harvard.edu/dept/jdadmissions/apply-to-harvard-law-school/the-application-process/admissions-faq/#faq-1-9