Grenay (French pronunciation: [ɡʁənɛ]; Picard: Guernay) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.

It is part of the arrondissement of Lens, the canton of Wingles and the Communaupole de Lens-Liévin.

[4] The current mayor is Christelle Buissette, elected in 2023.

[1] An ex-coalmining and light industrial town situated some 5 miles (8.0 km) northwest of Lens, at the junction of the D165 and the D58.

Excavation of the 749 metres (2,457 ft) Shaft 11bis, for ventilation, began in May 1906.