The Voodoo Loa aspects are divided into a number of nanchons or nations. These represent the origins and nature of the individual Loa.

As Loa can be invoked with different aspects, they may belong to more than one Nanchon. Erzulie, for example, is a Rada Loa in her aspect of Erzulie Freda, but she also has a powerful Petro aspect – Erzulie Dantor.

Beyond the two major nanchons of Petro and Rada, there are significant nanchons of Kongo, Nago and Ghede.