In early modern English, it was also called Welch Flanders or Gallike Flanders. The original French name is Flandre Gallicane or Flandre Gallicante, derived from the Latin term : Gallo Flandria or Flandria Gallica.
The term Walloon Flanders should not be used to designate the entire region, as it refers only to a part of Gallicant Flanders. It was used to refer to the part of Romance Flanders that adhered to the Union of Arras in 1579 and was annexed to France after the Treaties of Nijmegen (in both cases, Mouscron, for instance, was not a part of Walloon Flanders). The use of Walloon Flanders is political, not linguistic as Romance Flanders or Gallicant Flanders.