The University of Lausanne (UNIL, in French: Université de Lausanne) in Lausanne, Switzerland was founded in 1537 as a school of theology, before being made a university in 1890. Today about 13,500 students and 2,200 researchers study and work at the university. Approximately 1,500 international students attend the university (120 nationalities), which has a wide curriculum including exchange programs with world renowned universities.

Since 2005, the University follows the requirements of the Bologna process. The 2011 Times Higher Education World University Rankings ranked the University of Lausanne 116th globally. The CWTS Leiden Ranking 2015 ranks the University of Lausanne 11th in Europe and 41st globally, out of 750 universities.

Together with the École polytechnique fédérale de Lausanne (EPFL) the university forms a vast campus at the shores of Lake Geneva.