Harvard Law School (HLS) is the law school of Harvard University, a private research university in Cambridge, Massachusetts. Founded in 1817, Harvard Law School is the oldest continuously operating law school in the United States.

A law school is an institution, professional school, or department of a college or university specializing in legal education, usually involved as part of a process for becoming a judge, lawyer, or other legal professional within a given jurisdiction. Depending on the country, legal system, or desired qualifications, the coursework is undertaken at undergraduate, graduate, or both levels.