William Zachariah Mundy is a Lecturer for the Department of Government & Politics and the MLAW Programs. He teaches courses in public law and trial advocacy and is the Director of the five-time national champion Maryland Mock Trial Program. As a student at Maryland, he competed for the Maryland Mock Trial Program, which culminated in him being named an All-American and the program winning its fifth national championship. 

Zachariah is also a practicing attorney and the Director of the University of Maryland's Graduate Student Legal Aid Office (GLAO). In that role, he is a member of the University's Undocumented Student Working Group as well as the International Student Working Group. Before coming to the university, he worked for the District of Columbia government where he litigated complex disputes at both the trial and appellate levels and worked on affordable housing policy and rulemaking.

Zachariah graduated from the University of Maryland with a BA in Government & Politics and earned his Juris Doctor from the UCLA School of Law.