Louis Pasteur University (Université Louis-Pasteur), also known as Strasbourg I or ULP was a large university in Strasbourg, Alsace, France. As of 15 January 2007, there were 18,847 students enrolled at the university, including around 3,000 foreign students. Research and teaching at ULP concentrated on the natural sciences, technology and medicine. On 1 January 2009, Louis Pasteur University became part of the refounded University of Strasbourg and lost its status as an independent university.
The university was a member of the LERU (League of European Research Universities). It was named after the famous 19th-century French scientist Louis Pasteur. Sixteen Nobel laureates and one laureate of the Fields Medal have studied, taught or conducted research at Louis Pasteur University, underlining the excellent reputation of the university.