The Faculty of Law (Spanish: Facultad de Derecho) is a faculty of the University of Buenos Aires (UBA), the largest university in Argentina. It was founded alongside the university in 1821, and has consistently remained one of its largest constituent schools, presently counting with 23,790 enrolled graduate students. At the graduate level, it offers law degrees as well as legal translation and forensic calligraphy degrees, in addition to the professorship on judicial sciences.

Among its alumni, the UBA Faculty of Law counts 16 Argentine presidents, as well as one of Argentina's five Nobel Prize laureates, Carlos Saavedra Lamas.

The faculty has its seat at a Neoclassical complex on Avenida Figueroa Alcorta, in the Recoleta district of Buenos Aires. The building was inaugurated in 1949, and has become a landmark of the city. It is served by the Buenos Aires Underground through Facultad de Derecho station of Line H.