Last name Armbruster-Castillo (Armbruster-Castillo 
) , all around the world, is an extremely rare family name. The surname Armbruster-Castillo is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Armbruster, and a last name Castillo.
| VARIANT | COUNTRY |
|---|---|
| Armbruster-Castillo | United States |