Since 1926, the Aveyron department, has consisted of three arrondissements.
In 1800, the arrondissements of Rodez, Espalion, Millau, Saint-Affrique and Villefranche-de-Rouergue were established. The arrondissements of Espalion and Saint-Affrique were disbanded in 1926.
The borders of the arrondissements of Aveyron were modified in January 2017: