Arros

Arros is a toponym and surname used in southwestern France. The most prominent geographic reference is to L'Arros, a river in the Pyrenees foothills that forms part of the Adour basin, rising in the higher terrain and flowing across rural districts before joining the Adour system. The river supports local agriculture and provides habitats for various species, with portions of its course passing through towns and valleys in the region.

The name Arros also figures in the toponymy of several small communes and localities in the western and southwestern departments of France, where communities retain the toponym in historic or current names. These places are typically small rural communes with economies based on agriculture and livestock.

In onomastics, Arros appears as a surname in French-speaking communities. It is relatively rare, though it is found in genealogical records and local histories, where bearers may trace lineage to places named Arros or to the river region.

In broader contexts, Arros may be encountered in literature or cartography as a geographic label, reflecting the region’s hydrological and settlement patterns. The term thus encompasses natural, administrative, and personal name usages tied to the southwestern French landscape.