University of Lorraine, Research university in Nancy and Metz, France.

The University of Lorraine is a research institution with locations in Nancy and Metz that trains students in sciences, humanities, and technology. It operates multiple libraries, sports facilities, and distributed campuses throughout the Lorraine region.

The university was created in 2012 through the merger of several older institutions, including Henri Poincaré University and the National Polytechnic Institute of Lorraine. This consolidation formed a major research and teaching facility for the region.

The university runs several cultural venues in Nancy: the Espace Bernard-Marie Koltès national theatre, the Musée archéologique, the Aquarium Museum, the Musée de l'Histoire du Fer and the Jardin Botanique Jean-Marie-Pelt. The last three are co-operated with the Grand Nancy metropole. Its coat of arms, adopted in 2021, shows two open books above a shield with three silver alerions.

The main sites are in Nancy and Metz, with 51 campus sites across Lorraine, including Épinal, Bar-le-Duc, Forbach and Saint-Dié-des-Vosges. The university's 25 libraries are managed by its documentation department. The Musée archéologique, Aquarium Museum, Musée de l'Histoire du Fer and Jardin Botanique Jean-Marie-Pelt are run with the Grand Nancy metropole.

In the 2021 Academic Ranking of World Universities, the University of Lorraine placed first among European universities in Mining & Mineral Engineering. Its engineering schools include Mines Nancy and the École Nationale Supérieure de Géologie, and its research units work with CNRS, INSERM, INRAE and INRIA.