Billy-Montigny (French pronunciation: [bili mɔ̃tiɲi]; Picard: Bili-Montini) is a commune in the Pas-de-Calais department in the Hauts-de-France region in northern France.

[3] An ex-coalmining industrial town situated just 4 miles (6.4 km) east of the centre of Lens at the junction of the N43 and D46 roads.

The coal lasted just over 100 years, the last pits closing in the 1960s.

The history of the area remains marked by the Courrières mine disaster which resulted in 1,099 casualties on 10 March 1906 in the area of the communes of Billy-Montigny, Méricourt and Sallaumines.

This Pas-de-Calais geographical article is a stub.