The meaning of the name Guillermo is With Gilded Helmet. The origin of the name Guillermo is Spanish. This is the culture in which the name originated, or in the case of a word, the language.
A form of William. Pronounced "gee-YEHR-mo" with a hard G.
Guillermo is on 132 BN name lists Guillermo is currently not ranked on the BN charts Guillermo is currently #793 in U.S. births
Guillermo 
