Nogent-le-Rotrou (French pronunciation: [nɔʒɑ̃ lə ʁɔtʁu]) is a commune in the department of Eure-et-Loir, northern France.

It was the former capital of the Perche with the count living in the impressive medieval Château Saint-Jean which still dominates the town from a plateau of the same name.

Industrial employment owed much to the automotive sector which counted for almost 10% of jobs in the 1980s and 1990s and these were heavily linked to components manufacturer, Valeo.

The company had a local workforce of over 1000 in 1999,[3] but this too has been in decline as Valeo has delocalised to follow clients such as Renault to Romania.

[5] All is not doom and gloom, however, as the German medical and pharmaceutical supplier, B. Braun Melsungen announced[6] in early 2009 that it would be investing 20 million euros to modernise its local plant for it to specialise in the production of infusion pumps used in the intravenous administration of drugs.