Toponymy
The name of Montignies-lez-Lens finds its origin in the Gallo-Roman words Lindso and Montaniacus
It is modified over the centuries, the name was:
- in 1017 Montinium
- in 1086 Montiniacus
- in 1090 Montiniacum
- in 1550 Montigni or Montigny
- in 1700 Montigny les Lens
- in 1815 Montigny lez Lens
- and finally in 1845 Montignies lez Lens which remained the official name.
the patois name is: Montegny en hasnon as it is written on the seal of the court of aldermen before 1792,