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What does Gillermo mean?

Gillermo Pronunciation of Gillermo [giller-mo] as a name for boys has its root in Old German, and Gillermo means "determined protector". Gillermo is an alternate spelling of Guillaume (Old German): French version of William.

Associated with: determined (faithful), protector (defender).


2 relations via Guillaume: Guilherme and Guillermo.

Creative forms:


Middle name pairings:
Gillermo Nikita (G.N.), ..

How popular is Gillermo?

Gillermo is an uncommon first name for males. Gillermo is a unique last name too for all people. (2000 U.S. Census)

Which version is better?

with its source form and related boy names. The only popular related form of Gillermo (not ranked) ranked in the Top 2000 is Guillermo (#660 last year). Adoption of this form of Gillermo reached its apex in 1996 (usage of 0.04%) and is somewhat less today (usage 0.02%, 44%). (2015 Birth Statistics)

Top 2000 baby names ranking of Guillermo in U.S.

Top 100 baby names ranking of Gillermo and related baby names outside U.S.

Similar Names

Recommended names are Filberto, Galtero (see Gauthier), Gellert, Gilbert, Gilberto, Gilderoy, Gillean, Gillen, Gilleoin, Gilleon, Gilles, Gillett, Gillette, Gilley, Gillray, Gillroy (see Gilroy), Gilmer, Hiller, Hillery, Miller, Millerd, Silverio, Villem, Wilberto, Willem and Willerd. These names tend to be more commonly used than Gillermo.

See names
in meaning and etymology.