Rueil-Malmaison (French pronunciation: [ʁɥɛj malmɛzɔ̃]) is a commune in the western suburbs of Paris, in the Hauts-de-Seine department, Île-de-France region. It is located 12.6 kilometres (8 miles) from the centre of Paris. In 2017, it had a population of 78,152. It is one of the wealthiest suburbs of Paris.