Vermelles (French pronunciation: [vɛʁmɛl]) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.

Vermelles was the second extraction site used by the Compagnie des mines de Béthune.

Excavation of Mine 3 in Vermelles began in January 1857, reaching a rugged, steeply inclined deposit of coal at 147 metres (482 ft).

Excavation of Mine 4 at Vermelles started in October 1865 and reached coal at 149 metres (489 ft).

[6] Barricades were built as early as 1916 along the main axes of the mine complex so it could be defended while allowing ventilation and the passage of men.