Family name origins & meanings
- Spanish and Galician : from carballo ‘oak’, hence a topographic name for someone who lived by a conspicuous oak tree or in an oak wood, or a habitational name from any of several villages so named in Galicia.
- Castilianized form of Asturian-Leonese Carbachu, a habitational name from and old form of Asturian-Leonese carbayu ‘oak’, of pre-Latin origin.