Camacho : 1: Spanish: possibly a nickname from the Old Spanish bird name camacho (today camachuelo) ‘linnet robin’ for a thin or weakly person or someone with a hooked nose. Compare Comacho.2: Portuguese: apparently of Spanish origin (see 1 above).
Source :
DAFN2 : Dictionary of American Family Names 2nd edition, ©2022 by Patrick Hanks and Oxford University Press