Fontaine-lès-Hermans is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.
The commune is a small farming village situated northwest of Arras, on the D69 road. The largest nearby city is Bruay-la-Buissière, which is located 15 km southeast of the commune. It is surrounded by the communes Nédonchel, Westrehem and Fiefs.
The inhabitants of the commune of Fontaine-lès-Hermans are referred to as Hermanifontains or Hermanifontaines (males or females) in French.