Pagus Lomacensis

The gau or pagus of Lomme, often referred to using Latin, Pagus Lomacensis, or German Lommegau, was an early Austrasian Frankish territorial division, which included the fort of Namur, and evolved into the later County of Namur. The oldest Latin spellings were Laumensis or Lomensis.

In modern terms Lomme lay in what is now central Wallonia in French-speaking Belgium. It corresponds roughly with the part of the modern Province of Namur which is west of the Meuse. It also stretched into what is now Walloon Brabant in the north, the Belgian Province of Hainaut in the west, and to the south, into what is now France.