Washington University offers many joint-degree options with the university's other highly respected graduate schools. Students can design a joint degree to meet their individual interests by combining law with another master's program in the university. The School of Law and the participating departments work together so that a student can earn a Juris Doctoris (JD) and a master's or doctoral degree in another discipline in considerably less time than one would need to pursue each degree separately.

Applicants must gain admission to each program independently and therefore might need to take separate entrance exams, for example, the Graduate Record Examination or the Graduate Management Admission Test, in addition to the Law School Admission Test.

The School of Law accepts up to 9 credit hours earned in the other division toward the JD degree, as long as the JD is finished at the same time or immediately following the master's degree. The other divisions accept varying amounts of credit earned in the law school toward the master's degree.