The Mérieux family is an entrepreneurial dynasty from Lyon, France, owners of the Institut Mérieux holding, founders of companies such as Sanofi Pasteur, bioMérieux (in vitro diagnostics) and Mérial (veterinary activity), but also of the foundations Fondation Marcel-Mérieux and Fondation Christophe et Rodolphe Mérieux, of the Jean Mérieux P4 laboratory and of humanitarian organisation Bioforce.