Monoprix S.A. (French pronunciation: [mɔnɔpʁi]) is a major French retail chain with its headquarters in Clichy, Hauts-de-Seine, France, near Paris. The company's stores combine food retailing with hardware, clothing, household items and gifts.
It was a joint subsidiary of the Casino Group and Groupe Galeries Lafayette, with both partners holding 50% of the company each from 2000, until June 2012 when Casino acquired Galeries Lafayette's stake. The Monoprix group had more than 300 stores and employed around 20,000 people in France at the end of 2008. Monoprix is present in approximately 85% of all French towns with a population of more than 50,000. In 2005, Monoprix had €3.3 billion in revenue.
In 1997, Monoprix purchased its main rival, the Prisunic chain.