Family name origins & meanings
- Southern Italian : habitational name from Montesano Salentino in Lecce province or Montesano sulla Marcellana in Salerno province, so named from monte ‘mountain’ + sano ‘healthy’.
- Possibly also Spanish : habitational name for someone from Montesa in Valencia province, from an adjectival form of the place name. However, the American surname appears to be predominantly of Italian origin.